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1
Waja, Aadil Ahmed. "Load recorder." Thesis, Cape Technikon, 1987. http://hdl.handle.net/20.500.11838/1165.
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Thesis (Masters Diploma (Electrical Engineering)) --Cape Technikon, Cape Town, 1987This thesis describes the development of a computerized Load Recorder. The load recorder is used by the Cape Town City Council to assist in the tariff investigation of electricity consumers. This investigation assists the consumers in selecting the best cost effective electricity tariff. It also motivates the consumers to maintain a constant load which in turn assists the Council in supplying the required electricity. The load recorder replaces a manual and time consuming method used in conducting the tariff investigation. The development of the load recorder involved the design of hardware and software. It was designed in a compact enclosure to hook up to the electricity meters of the consumer for a period of 7 days. The software was designed in the 6805 assembly language to log data and record the electricity load every 15 or 30 minutes for this period. At the end of this period the data is downloaded into the HP85 personal computer. A basic program was designed for the HP85 to analyse and compute the downloaded data. A graphical representation and analysis is printed by the HP85 computer. The given graph of the results represents the electricity used for this period. The tariff rates are analysed and calculated to determine the best cost effective tariff. A CMOS micro computer intergrated circuit was chosen due to the determined specification of the load recorder. In order to make the development of the load recorder possible an aid (tool) had to be designed and built for the chosen microprocessor. This development aid, the emulator, is included as part of this thesis. The Motorola exorciser only supported a cross assembler for the chosen microprocessor family. The emulator was designed and built to enable testing and debugging on the Exorciser. The development on the emulator involved a detailed analysis of the Exorciser development system. The emulator was designed using hardware and software. The hardware emulator board was designed as a standard Motorola size card which plugs into the Exorciser. The software was designed for the 6809 exorciser and for the 6805 emulator. The emulator was soak tested and debugged during the development of the load recorder. The emulator opened further avenues for future microcomputer design projects especially where a confined area and compactness is an important factor. The design and development of the emulator and the load recorder was conducted in the Computer Section of the City Electrical Engineer's Department of Cape Town.
2
Smith, Darren C., and Dean Tenderholt. "So You Think Tape is Dead." International Foundation for Telemetering, 1998. http://hdl.handle.net/10150/607384.
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International Telemetering Conference Proceedings / October 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, CaliforniaThe times that we live in offers the most advanced pace of technology development ever known to the world, and it is getting faster. A large part of commercial computer technology development is based on increased size and decreased cost of memory devices, from which the instrumentation community can derive great benefit through the development of solid state systems. The procurement cost of new solid state systems utilizing increased memory capability makes the temptation to move to this technology unavoidable. There are, however, some issues that need to be discussed which go beyond procurement costs and involve operational and life cycle considerations.
3
Kortick, David N. "FROM THE STRIP-CHART RECORDER TO THE TELEMETRY RECORDER-WORKSTATION." International Foundation for Telemetering, 2000. http://hdl.handle.net/10150/606504.
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International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, CaliforniaThe strip-chart recorder has evolved from a simple pen-writing instrument to an instrumentation platform. Today's Telemetry Recording Workstations not only provide a permanent hard copy of telemetry data, but also offer high resolution videographic displays with real-time point-of-writing representation, the ability to efficiently store data digitally, and customizable user interfaces. Host control and digital data transfer can be achieved using Ethernet networks, making the instrument an integral part of a telemetry system. The Telemetry Recording Workstation is a fundamental instrument for any telemetry application or installation, due to its abilities to display, print and store real-time data.
4
MacMillan, Douglas. "The recorder 1800-1905." Thesis, University of Surrey, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431130.
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5
Holmberg, Anthony, and Nils Lundqvist. "WoodWinder : MIDI Controlled Recorder." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264499.
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WoodWinder is a machine whose job is to interpret the signal from a Musical Instrument Digital Interface (MIDI) keyboard and make a recorder play accordingly. This was performed by simulating the two human traits needed in order to play the recorder: providing air flow for the mouthpiece and fingers to cover its holes. The air flow was provided by a custom made centrifugal fan and directed through a separation chamber which determined how much air was allowed to travel through the mouthpiece and how much was driven out through an exhaust. The purpose of the separation chamber was to simulate the amplitude of the played tone. The movement of the fingers was enabled by seven servo motors, mounted collaterally to the recorder. All movement was governed by two Arduino Microcontroller Units (MCU), a servo driver and a motor driver. The machine can play any note on demand without hardly any noticeable lag. The two lowest tones D and C were somewhat limited as they produced a distorted sound at high enough velocities. The largest error in accuracy for expected frequencies was around 6Hz.WoodWinder är en maskin vars jobb är att tolka signalen från ett MIDI keyboard och få en blockflöjt att spela efter. Detta utförs genom att simulera de två mänskliga egenskaperna som krävs just för att spela en blockflöjt: förmedla luftflöde till munstycket och fingrar till att täcka hålen. Luftflödet förmedlades via en specialtillverkad centrifugalfläkt och fördes genom en separationskammare som bestämde hur mycket luft som tilläts flöda in i munstycket kontra ut ur en ventil. Detta för att bäst simulera amplituden på tonen som spelades. Fingrarnas rörelse möjliggjordes av sju servomotorer, monterade längs blockflöjten och all rörelse styrdes av två Arduino-mikrokontroller, en servooch en motordrivare. Maskinen kan spela alla tänkta toner utan någon märkbar fördröjning. De två lägsta tonerna D och C blev något begränsade då de, vid högt luftflöde, producerade ett något förvrängt ljud. Det största uppmätta felet i förhållande till förväntade värden var 6Hz.
6
Smith, Grant M. "NETWORKABLE TELEMETRY DATA RECORDERS BASED ON COTS COMPUTER TECHNOLOGY." International Foundation for Telemetering, 2002. http://hdl.handle.net/10150/607548.
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International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, CaliforniaAdvances in several related technologies have brought together the previously incompatible goals of incorporating as much COTS technology as possible into the telemetry data recording architecture, providing operators with the kinds of real-time graphical data displays that they are accustomed to, and allowing these same data display systems to share data across a network and write to common database files accessible from centralized workstations.
7
Schoberg, Paul R. "Secure ground-based remote recording and archiving of aircraft "Black Box" data." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03sep%5FSchoberg.pdf.
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Thesis (M.S. in Computer Science)--Naval Postgraduate School, September 2003.Thesis advisor(s): Cynthia E. Irvine, Scott Cote. Includes bibliographical references (p. 169-171). Also available online.
8
Wigent, Mark A., and Andrea M. Mazzario. "Enhanced Query Data Recorder (EQDR) - A Next Generation Network Recorder Built Around iNET Standards." International Foundation for Telemetering, 2014. http://hdl.handle.net/10150/577499.
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ITC/USA 2014 Conference Proceedings / The Fiftieth Annual International Telemetering Conference and Technical Exhibition / October 20-23, 2014 / Town and Country Resort & Convention Center, San Diego, CAThe Enhanced Query Data Recorder (EQDR) has been developed under the Test Resource Management Center's (TRMC) Spectrum Efficient Technologies (SET) T&E S&T program. The EQDR is a network flight recorder built around the iNET standards and which is intended to meet the future needs of the networked telemetry environment. The EQDR is designed to support the "fetch" of recorded test data during a test without interruption to the ongoing recording of data from the test article vehicle network. The key benefits of the network data recorder as implemented in the EQDR are increased flexibility and efficiency of test in an environment with increasing demands on spectrum available for telemetered data. EQDR enables retrieval of individual recorded parameters on an as-needed basis. Having the flexibility to send data only when it is required rather than throughout the duration of the test significantly increases the efficiency with which limited spectrum resources are used. EQDR enables parametric-level data retrieval, based not only on time interval and data source, but also on the content of the recorded data messages. EQDR enables selective, efficient retrieval of individual parameters using indexes derived from the actual values of recorded data.
9
Wigent, Mark A., and Andrea M. Mazzario. "Spectrum Savings from High Performance Network Recording and Playback Onboard the Test Article." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581609.
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ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, CaliforniaThe Test Resource Management Center's (TRMC) Spectrum Efficient Technologies (SET) S&T program is sponsoring development of the Enhanced Query Data Recorder (EQDR), a network flight recorder that is intended to meet the future needs of the networked telemetry environment. EQDR is designed to support the "fetch" of recorded test data during a test without interrupting the ongoing recording of data from the test article vehicle network. The key benefits of the network data recorder as implemented in EQDR are increased flexibility and efficiency of test in an environment with increasing demands on spectrum available for telemetered data. EQDR enables retrieval of individual recorded parameters on an as-needed basis. Having the flexibility to send data only when it is required rather than throughout the duration of the test significantly increases the efficiency with which limited spectrum resources are used. EQDR enables parametric-level data retrieval, based not only on time interval and data source, but also on the content of the recorded data messages. EQDR enables selective, efficient retrieval of individual parameters using indexes derived from the actual values of recorded data. This paper describes the design of EQDR and the benefits of selective data storage and retrieval in the application of networked telemetry. In addition it describes the performance of the EQDR in terms of data recording and data retrieval rates when implemented on single board computers designed for use in the aeronautical test environment with size, weight, and power constraints.
10
Kortick, David. "Telemetry Recorders and Disruptive Technologies." International Foundation for Telemetering, 2009. http://hdl.handle.net/10150/606022.
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ITC/USA 2009 Conference Proceedings / The Forty-Fifth Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2009 / Riviera Hotel & Convention Center, Las Vegas, NevadaTelemetry data recorders are not immune to the effects that a number of disruptive technologies have had on the telemetry industry. Data recorder designs today make use of data buses, storage types and graphical user interfaces that are constantly evolving based on the advances of personal computer and consumer electronics technologies. Many of these recorders use embedded designs that integrate disruptive technologies such as PCI Express for realtime data and signal processing, SATA interfaces for data storage and touchscreen technologies to provide an intuitive operator interface. Solid state drives also play a larger role in the latest recorder designs. This paper will explore the effects of these technologies on the latest telemetry recorders in terms of the benefits to the users, cost of implementation, obsolescence management, and integration considerations. The implications of early adoption of disruptive technologies will also be reviewed.
11
Banks, Simon. "HIGH RATE DIGITAL CASSETTE RECORDERS." International Foundation for Telemetering, 1991. http://hdl.handle.net/10150/613050.
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International Telemetering Conference Proceedings / November 04-07, 1991 / Riviera Hotel and Convention Center, Las Vegas, NevadaRecorders conforming to IRIG Standards have served the data recording community well for many years. Initially, most systems were analog in nature, recording data in either direct or FM modes but as the need for digital recording developed, the IRIG recorder was successfully adapted for this purpose by the addition of formatting and coding sub-systems to form the High Density Digital Recorder (HDDR). Today, user requirements for higher speed, higher capacity and more convenient systems have presented equipment designers with new challenges in terms of the correct choice of technology and system architecture. It is not surprising that system designers should turn for inspiration first to the very high speed transverse and helical products which had been developed for the broadcast industry since these technologies possess many of the attributes necessary for a high rate digital data recorder. It is unfortunate that it has now become a truism that the only logical progression from the longitudinal IRIG system is by means of rotary technology. Recent developments in a technology known as micro-track recording now call this assumption into question. Recording systems based on micro-track technology are available and others are in an advanced state of development, and these offer a costeffective, attractive and low risk alternative to rotary systems for both high rate data capture and tape mass storage applications.
12
Rohre, Stuart M. "QUALIFYING THE COCKPIT VOICE RECORDER AS AN INSTRUMENTATION RECORDER AND AIRCRAFT STRUCTURAL MONITORING INSTRUMENT." International Foundation for Telemetering, 1998. http://hdl.handle.net/10150/607385.
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International Telemetering Conference Proceedings / October 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, CaliforniaA novel concept using the cockpit voice recorder (CVR) as a structural vibration recording device, to aid in structural health monitoring of commercial and military aircraft, is outlined. The unused cables in the CVR wiring harness act as “latent transducers” that respond to structural vibrations, generating vibration signals, which the CVR records. Postprocessing of such data can provide clues to problem areas or changes in the signature of the aircraft. The standards which the CVR must meet to qualify as a instrumentation-quality recorder are discussed and the steps required to assure compliance are outlined.
13
Olyabek, Zuhair. "Digital optically coupled transient recorder." Thesis, City University London, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238838.
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14
Chapel, Brian Ernie. "Digital disk recorder for geophysics." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24592.
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This thesis describes the design and testing of a floppy disk drive based digital recorder. The device was originally built for a geomagnetic research project, but is also suitable for other phenomena with time scales from fractions of a second to approximately one day. The system is designed specifically to improve the reliability for long-term observing programs and to enhance the efficency of the subsequent data analysis procedures. Using an STD-Z80 BUS microcomputer, under the control of a Forth language program, the recorder stores digital data on removable 8-inch floppy disks. This thesis explicitly addresses the issue of cost and provides the necessary detail for reproduction of the device. A procedure is described for preparing the acquired data for analysis using computing facilities equiped with an appropriate disk reader. Also presented is a quantitative and qualitative evaluation of the recorder's performance when applied to both synthetic and natural signals. The latter include geomagnetically induced currents in power transmission lines.Science, Faculty of
Earth, Ocean and Atmospheric Sciences, Department of
Graduate
15
Bougan, Timothy B. "COMPACT HIGH-SPEED DISK RECORDER." International Foundation for Telemetering, 1994. http://hdl.handle.net/10150/608597.
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International Telemetering Conference Proceedings / October 17-20, 1994 / Town & Country Hotel and Conference Center, San Diego, CaliforniaIn order to meet the high-speed and high-density recording requirements for today's development and testing environments, we are seeking to merge the cutting edge technologies of tiny, high-performance disk drives and field programmable gate arrays (FPGAs) to build a high-speed compact disk recorder (CHSDR). Specifically, we designed, built, and tested a multi-drive controller that handles the interleaving of data to eight inexpensive IDE drives. These drives and controller comprise a "cell" capable of transferring data at 2.45 MB/sec (4 to 5 times the rate of a single drive). Furthermore, these "cells" can be run in parallel (with a single controller interleaving data between the cells). This "tree" effect multiplies the data rate by the number of cells employed. For example, 8 cells (of 8 drives each) can reach nearly 20 MB/second (sustained) and can be built for less than $30,000. The drives we used are the size of match boxes (the Hewlett Packard KittyHawk). These tiny drives hold 42 megabytes each and can withstand 150 Gs while operating. The cell controller is a Xilinx 4005 FPGA. Furthermore, we've designed a 120 MB/sec RAM FIFO to buffer data entering the system (to account for unavoidable drive seek latencies). In short, the compact high-speed disk array is a small, relatively low cost recording solution for anyone requiring high data speed but modest data volume. Missile shots, nuclear tests, and other short-term experiments are good examples of such requirements.
16
Scott, Chuck, Howard Nussbaum, and Scott Shaffer. "Magellan Recorder Data Recovery Algorithms." International Foundation for Telemetering, 1993. http://hdl.handle.net/10150/611897.
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International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, NevadaThis paper describes algorithms implemented by the Magellan High Rate Processor to recover radar data corrupted by the failure of an onboard tape recorder that dropped bits. For data with error correction coding, an algorithm was developed that decodes data in the presence of bit errors and missing bits. For the SAR data, the algorithm takes advantage of properties in SAR data to locate corrupted bits and reduce there effects on downstream processing. The algorithms rely on communication approaches, including an efficient tree search and the Viterbi algorithm to maintain the required throughput rate.
17
Sepúlveda, Gatica Andrea. "Recordar sintiendo." Tesis, Universidad de Chile, 2013. http://repositorio.uchile.cl/handle/2250/115714.
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PsicólogaEl presente trabajo pretende comprender la experiencia afectiva de visitar Londres 38 para visitantes jóvenes. Desde una aproximación cualitativa, se realizó el análisis de registros audiovisuales de visitantes entre 16 y 30 años, quienes recorrieron la casa a través de un dispositivo denominado como acompañamiento dialógico interactivo. Los resultados que se presentan dan cuenta de la articulación entre espacio físico, afectos y contenidos de las memorias lo que provoca climas afectivos particulares que permiten que la experiencia de la visita sea vivida intensamente. Estos climas están principalmente relacionados al uso represivo de la casa en la cual visitante se conecta con el horror y el sufrimiento de las víctimas. Se destaca la importancia de entender la afectividad como un proceso colectivo fundamental en la experiencia de visita, y que su problematización permite nuevas posibilidades de pensar los procesos de memorias desde este lugar
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Harrison, Andrew. "ASIC based recorders of electrophysiological signals." Thesis, University of Nottingham, 1995. http://eprints.nottingham.ac.uk/13305/.
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The ability of application specific integrated circuits (ASICs) to minimise the size and power consumption of electronic circuitry, makes their application to the design of ambulatory monitoring equipment, an attractive option. To this end, a multi-purpose mixed analogue and digital ASIC has been fabricated and incorporated into both a long-term recorder of adult heart rate (HR) and a recorder of electrophysiological signals. The adult HR recorder has been employed in a study of long-term daily HR patterns, which verified the ambulatory nature of this instrument, as well as its suitability for investigating HR variability. The electrophysiological signal recorder uses the ASIC to amplify, filter and digitise signals, which are then stored directly into static RAM. The analogue front-end of this instrument is flexible in terms of gain, bandwidth and sampling frequency allowing it be applied to a whole range of signals. This instrument has been used to record the antepartum fetal HR, as part of the development of an ambulatory, ASIC based recorder of fetal HR (FHR). These recordings have shown that a usable signal can be obtained from a mother in her home environment, whilst in various postures. The electrophysiological signal recorder has also been used to record the electrohysterogram (EHG), which is the name given to the electrical activity of the uterus, from abdominal electrodes during labour. A strong correlation was found to exist between tocographs derived from the EHG and tocographs produced by conventional means.
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LEITE, PAULO CESAR LOPES. "DISTURBANCE RECORDERS UTILIZED AS FAILURE LOCALIZERS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1989. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=9426@1.
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Até há bem pouco tempo atrás, os Registradores de
Perturbação utilizados em subestações de energia elétrica
eram baseados em circuitos analógicos sendo a plotagem
realizada através de Oscilógrafos que se utilizavam de
papel foto-sensível ou gráfico. Como saída, estes
equipamentos forneciam uma plotagem das formas de onda das
tensões e correntes da pré-falta e da falta mas, no
entanto, devido à tecnologia utilizada, não era possível
se obter nem precisão das grandezas monitoradas (tensão ou
corrente) nem informações sobre harmônicos presentes no
sistema.
Devido ao desenvolvimento de sistemas de aquisição de
dados baseados em microprocessadores, novos Registradores
de Perturbação (RP) têm sido desenvolvidos tendo como
características:
maior precisão na aquisição das grandezas;
integração de funções de registros e cálculos variados;
transferência de dados adquiridos via sistema de
comunicação para os centros de análise;
armazenamento dos dados em memória de massa (fita ou
disco) para posterior manipulação matemática por
computadores; sistemas de autodiagnóstico e automonitoramento para
falhas em hardware e software, etc.
Este trabalho se propõe apresentar alguns programas de pós-
processamento que se utilizam dos dados adquiridos pelos
RP, permitindo de uma forma rápida e de baixo custo
informações como: tipo de falta ocorrida, componentes
simétricas de seqüência positiva, negativa e zero;
componentes harmônicas, a partir da análise espectral das
grandezas adquiridas; localização da falta em LT`s, com
indicação da distância do ponto de falta.
Vários programas de teste foram desenvolvidos, além da
utilização do EMTP (Electromagnectic Transient Program) e
uma unidade de aquisição ARTUS para a comprovação dos
algoritmos propostos.Up until recently, disturbance recorder utilized in electric energy sub-stations were based on analog circuits and the plotting was done by oscilographs that utilized photo-sensitive paper or graph paper. As a result, these instruments provided a plotting of the kinds of waves of tensions and current of the pre-fault and of the fault. However, because of the technology that was used, it was not possible to get either precision of the monitored data (tension/current) or information about harmonic elements present in the system. Due to the development of data acquisition systems based on microprocessors, new disturbance recorders have been developed with the following characteristics: greater precision in acquisition of the data; integration of the functions of registers and various calculation; transfer of acquired data to the center of analysis through a communication system; storage of data in mass memory (tape or disc) for later mathematic manipulation by computer; systems of auto-diagnosis and auto-monitoring of hardware and software failures, etc. This work presents a few programs of post-processing that utilize data acquired by the disturbance recorder providing a fast, low-cost way to get information such as: the kind of failure that occurred; symmetrical components of positive, negative and zero sequences; harmonic components from the spectral analysis of the acquired data; localization of failures on LT`S, indicating the distance of the point of failure. Several test programs were developed to prove the proposed algorythms, including the utilization of EMTP (Electromagnectic Transient Program) and a unit of acquisition ARTUS.
20
Matthewman, Richard. "Hydrocarbons as recorders of cosmic environments." Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/9290.
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Hydrocarbons are ubiquitous in the Cosmos. Carbon stars jettison large amounts of hydrocarbons into interstellar space and these are incorporated into forming planetary systems alongside newly synthesized hydrocarbon material. The structure of a hydrocarbon reveals its origin with non-biological, biological, low temperature, high temperature, reduced, oxidised and aqueously altered hydrocarbons all having structural features that imply their provenance. These features are explored throughout this work, with a focus on the insoluble macromolecular organic carbon of meteorites and comparative terrestrial samples. Analytical pyrolysis of macromolecular material in meteorites is a well established technique. By subjecting samples to multiple heating steps, rather than the more usual single step, new insights into the structure and composition of the macromolecular material have been obtained. In addition, simple typing of chondrites and a reconstruction of the conditions experienced on their asteroid parent bodies is possible using the products of pyrolysis. It is the carbonaceous chondrites that have received the most attention for their organic content but some ordinary chondrites also contain appreciable quantities of organic materials. The organic inventory of both carbonaceous and ordinary chondrites has been explored in this study. Carbonaceous chondrites contain authentic abiotic organic material and are in great demand for scientific analysis and experimentation. Yet these objects are extremely rare and valuable and there is a need for analogue materials that are available in larger quantities and on which specific experiments can be carried out. Uses of effective meteorite organic analogues include the training of personnel, testing of analytical methods, contamination studies, and optimisation of space mission instruments. Most of the carbon in carbonaceous chondrites is a non-biological aromatic and intractable macromolecular material and previously unsatisfactory analogues have included coals and other so-called type III kerogens. Following a comparison of a number of candidate materials a new analogue has been identified in reworked fossil soils from the Jurassic of southern England. This type IV kerogen displays great similarities to the macromolecular material in meteorites and can be employed to lessen the burden on our curated collections of rare carbonaceous meteorites. The thermal and chemical stability of hydrocarbons ensures that they exhibit excellent preservation potential and can often be found when other molecular information carriers have long since perished. This feature is important when studying planetary environments for indicators of biogenicity. Yet there is a multitude of information to process and the organic signals can often be confusing owing to diagenesis, catagenesis, oxidation and weathering. In this study a wide range of terrestrial and extraterrestrial materials have been examined using statistical techniques to develop a method for the discrimination of abiotic from biotic macromolecular materials, based only upon the distributions of simple aromatic hydrocarbons and related compounds. This has important implications for life-detection missions destined for Mars, which are currently under development.
21
Grebe, David L. "RECORDERS IN NETWORKED DATA ACQUISITION SYSTEMS." International Foundation for Telemetering, 2002. http://hdl.handle.net/10150/607498.
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International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, CaliforniaThe role of recorders in telemetry applications has undergone many changes throughout the years. We’ve seen the evolution from multi-track tape to disk to solid state technologies, both for airborne and ground based equipment. Data acquisition and collection system design has changed as well and a recent trend in airborne is to merge acquisition and recording. On the ground, increased decentralization of data collection and processing has generated the requirement to provide backup storage to protect against communication circuit outages. This paper explores the trend to adopt network based data acquisition, collection, and distribution systems for telemetry applications and the impact on recording techniques and equipment. It shows that in this emerging approach the recorder returns to its root mission of attempting to provide the fastest, largest capacity for the least amount of investment. In a network based architecture the recorder need only accept and reproduce data operating independently from the acquisition process.
22
Gaskill, David M. "ETHERNET FOR THERMAL ARRAY CHART RECORDERS." International Foundation for Telemetering, 1994. http://hdl.handle.net/10150/608596.
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International Telemetering Conference Proceedings / October 17-20, 1994 / Town & Country Hotel and Conference Center, San Diego, CaliforniaThis paper will examine real-time ethernet capabilities in general and will describe in detail a practical implementation of an Ethernet interface that allows commands and data to be sent to a thermal array recorder using a standard TCP/IP, Novell, or similar interface. This interface allows two types of data transmission. First, real-time data may be sent at low rates for slow speed monitoring or, second, high speed packets may be sent for storage in local FIFO memory. A header containing sample rate information allows the recorder to reconstruct the data on paper smoothly so that it has the appearance of real-time recording but is slightly delayed. In addition, normal host control commands may be interleaved with data for a complete high speed digital data system.
23
Gallupe, Gary. "PRE-DETECTION CONVERTERS FOR TAPE RECORDERS." International Foundation for Telemetering, 1993. http://hdl.handle.net/10150/608897.
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International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, NevadaRF and IF signals must be down-converted to lower frequencies to allow storage on tape. Pre-Detection converters avoid signal distortion created in later receiver stages, however should not add noise and distortion with their conversion process.
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Heim, J. "Instrumentation Tape Recorders Using DAT Technology." International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/608935.
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International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, CaliforniaInstrumentation tape recorders have been known since the fifties. However, their requirements have undergone complete changes. More and more, the large “dinosaur type recorders” are superseded by new technologies, but when it comes to recording large data volumes over a long time the magnetic tape cannot be replaced by alternative recording methods. The following presentation will introduce magnetic tape units based on the 4 mm digital audio tape. This family of units has achieved large importance during recent years, since the DAT tape units have very small dimensions and can be used for all purposes. Depending on the application, analog and digital magnetic tapes are used. Thanks to the use of digital signal processors the system specifications could be improved to a considerable extent. Multi-channel analog recorders operate with digital signal processing. The transmission characteristics concerning amplitude and phase errors were improved such that the residual error can be neglected during daily metrology work. Furthermore, automatic calibration improves system accuracy and simplifies the units’ maintenance.
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Dunn, Wiley E. "Rotary Head Recorders in Telemetry Systems." International Foundation for Telemetering, 1989. http://hdl.handle.net/10150/614666.
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International Telemetering Conference Proceedings / October 30-November 02, 1989 / Town & Country Hotel & Convention Center, San Diego, CaliforniaAlthough magnetic recording devices employing rotary head technology have been around for many years, specific products were not developed with the bit error performance to satisfy the instrumentation recorder needs of the telemetry community. Only recently have a number of new products and new product development programs materialized which offer positive indications that telemetry systems will soon benefit from the higher data rates and storage capacities. The lack of standards in development of rotary head technology has led to development of a variety of design approaches by various manufacturers and system designers. If this trend continues, the telemetry community will not enjoy the media compatibility which has contributed so much to the success of the IRIG instrumentation recorder. The ability to remove a tape recorded on one vendors recorder and replay the tape on a different ground station containing a second vendors recorder is a capability that should be retained with the advent of the new machines. Two standards have evolved defining tape characteristics and the format of information on tape for instrumentation rotary head recorders. For the instrumentation tape media to be truly transportable between telemetry ground stations, standard signal and data formal interfaces must also be developed.
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Ferrill, Paul, and Michael Golackson. "IRIG 106 CHAPTER 10 RECORDER VALIDATION." International Foundation for Telemetering, 2007. http://hdl.handle.net/10150/604413.
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ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, NevadaThe most recent version of IRIG 118, Test Methods for Telemetry Systems and Subsystems, was released in 1999 and does not include any guidance for testing IRIG 106 Chapter 10 recorder / reproducers. This paper will describe the methodology and tools used to perform a thorough testing process to ensure compliance with the IRIG 106-07 standard.
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Harris, Kevin E. "Portable Airborne Digital Data System Recorder." International Foundation for Telemetering, 1994. http://hdl.handle.net/10150/611742.
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International Telemetering Conference Proceedings / October 17-20, 1994 / Town & Country Hotel and Conference Center, San Diego, CaliforniaVeda Incorporated has developed an airborne instrumentation recorder for a major commercial aircraft manufacturer. The recorder was developed for use in the aircraft company's Portable Airborne Digital Data System (PADDS), a small scale data acquisition and monitor system used for flight testing. The recorder is designed around an off-the-shelf 8mm tape drive, the Exabyte 8505. It records asynchronous, variable-rate data in a proprietary 24-bit recording format, and allows the data to be played back in real time. Its RS-422 control interface is designed to imitate the recorder used in the company's large scale data acquisition system, the Ampex DCRSi-II. Special provisions allow it to withstand the environment of an airplane's EE bay.
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Suder, Gabriele. "Anti-dumping measures and the politics of EU-Japan trade relations in the European consumer electronics sector : the VCR case." Thesis, University of Bath, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260884.
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Fitzgerald, Alan. "DATA STORAGE SUITED TO FLIGHT DATA RECORDERS." International Foundation for Telemetering, 2004. http://hdl.handle.net/10150/605266.
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Kortick, David N. "PEER-TO-PEER NETWORKING WITH TELEMETRY RECORDERS." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/605834.
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International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, NevadaTelemetry recorders have historically been used as standalone systems with each user responsible for operation and data interpretation on that system. Utilizing the latest peerto- peer networking technologies, telemetry recorders can now be linked to provide instantaneous communication between systems. This fully distributed, network-based architecture can be used for command and control of multiple recorders, as well as message passing between them. A centralized server is no longer required, resulting in considerable logistical and cost savings. The peer-to-peer communication topology can efficiently connect telemetry recorder “islands of information”.
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Mason, Terry, Fred Jr Thames, and John Howard. "‘NEW TECHNOLOGY’ DATA RECORDERS A TECHNOLOGY OVERVIEW." International Foundation for Telemetering, 2001. http://hdl.handle.net/10150/606457.
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International Telemetering Conference Proceedings / October 22-25, 2001 / Riviera Hotel and Convention Center, Las Vegas, NevadaThere are clear signs that data recorders using solid-state and disk-based technologies now represent a serious alternative to conventional linear and rotary tape recorders for a broad spectrum of data capture applications. As the number of RFQs specifying these so-called ‘new technology’ solutions increases, virtually every major manufacturer has responded with announcements of new off-the-shelf products. A NATO technical support team has even been tasked with drafting standards for certain aspects of solid-state and disk recorders. But what has caused this sudden explosion of interest? Strange to say, in almost every case it has been the perceived shortcomings of the new technologies which have forced the issue. For all their advantages, solid-state and disk recorders are essentially only temporary storage devices. To overcome this problem manufacturers have found it necessary to address the total data capture/storage/distribution/archiving scenario – with some interesting results. It is in the ‘data handling’ area therefore that some of the most significant advances are to be found. This Paper offers an overview of some of the new technology solutions now available - RAID (Redundant Arrays of Independent Disks), JBOD (Just a Bunch Of Disks) and FLASH memory recorders. New paradigms for airborne, mobile and laboratory data collection, handling, analysis and archiving are discussed, demonstrating that (for once) the migration path has been carefully thought through, with industry-standard data interfaces, true computer connectivity (Windows and UNIX) and familiar control techniques. It concludes that many users with a keen interest in replacing legacy products for whatever reason can now do so with confidence and minimal disruption to their day-to-day operation while nevertheless gaining access to the important benefits which ‘new technology’ solutions can offer.
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Kayes, Edwin A. "COMPUTER-FRIENDLY HIGH RATE DIGITAL CASSETTE RECORDERS." International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/608888.
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International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, CaliforniaThe world of instrumentation data recording has traditionally been concerned with recorder performance in terms of bandwidth, data rate, tape speed and recording time, with the apparently unceasing trend to record more and more data. However, while this may remain a valid perspective for data acquisition, the increasing requirement to integrate equipment into computer based environments has resulted in the need for greater emphasis to be applied to such parameters as data control and interfacing when specifying digital data recording systems. This paper addresses these operational issues and describes the practical implementation of a computer friendly digital cassette recorder which provides a common platform for both high rate data acquisition and computer based data analysis.
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Eccles, Lee H. "DATA RECORDERS FOR BOEING 777 FLIGHT TEST." International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/608936.
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International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, CaliforniaA family of data recorders are being developed for use by the Boeing Commercial Airplane Company in flight testing the 777 airplane. The intention is to have a family of recorders which all have the same interface to the recording and monitor systems but have vastly different data rates and capacities. At this time two recorder systems are being developed. The large recorder will be an Ampex DCRSi with a custom interface for the new data acquisition system. The small recorder will be an Exabyte Model 8500 with a similar interface to the one being used in the DCRSi. An intermediate recorder may be developed if the economics of the system show that it would be cost effective but, it is not presently under development. This paper discusses the recorders, the modifications necessary to develop the interfaces and the interfaces themselves for both the large and small recorders.
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Pouille, Etienne. "Multiplexer-Demultiplexer for High Speed Digital Recorders." International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/611960.
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International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, CaliforniaThis paper describes a multiplexer-demultiplexer for high speed digital recorders. The multiplexer-demultiplexer enables a single-channel recorder (for example, MIL-STD-2179 recorders) to be used with up to eight asynchronous data channels, each channel being analog or digital. Time correlation between the different channels is preserved. The multiplexer and the demultiplexer are modular products and can be used under different environments (ships, aircraft, laboratory, ...).
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Smith, Grant M. "CHART RECORDERS EVOLVE INTO DATA MANAGEMENT SYSTEMS." International Foundation for Telemetering, 1991. http://hdl.handle.net/10150/613053.
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International Telemetering Conference Proceedings / November 04-07, 1991 / Riviera Hotel and Convention Center, Las Vegas, NevadaA synopsis of the very recent evolution of telemetry chart recorders from “closed” chart paper output devices to powerful “open” Data Management Systems. A Data Management System (DMS) is defined as one which incorporates a video screen for waveform preview and monitoring, direct connection of hard or optical disk via SCSI for real-time data archiving, and DR11 digital interfacing. The DMS concept of providing real-time waveform monitoring independent of hard copy recording is discussed, as well as the capabilities of the hard copy recorder. The realities of budget shortfalls makes wholesale system upgrades to eliminate DAC’s entirely difficult at best. These concerns—and a potential remedy: a DMS which accepts any mix of analog and digital waveforms—are reviewed. Objectives: How DMS’s can be integrated with existing telemetry systems, encompass the functionality of conventional recorders and add new capabilities, with an emphasis on how data can be digitally pre-formatted in real-time, simplifying—or even eliminating—post-mission reduction and analysis. A demonstration of how a video display allows real-time trace viewing—a major weakness of conventional thermal array recorders.
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Salisbury, Jack, Harold E. Cornelius, and Gregory A. Pennington. "Development and Usage of IF Recorders in Range Systems." International Foundation for Telemetering, 2014. http://hdl.handle.net/10150/577402.
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ITC/USA 2014 Conference Proceedings / The Fiftieth Annual International Telemetering Conference and Technical Exhibition / October 20-23, 2014 / Town and Country Resort & Convention Center, San Diego, CAAccurate reproduction of RF transmissions for test and development has been out of reach for some time. The testing of RF equipment, multipath generation and downstream TM processing systems has been done in the past with varying levels of accuracy. In the past the techniques of checking TM equipment worked, but lacked realism that real TM transmissions provide. This paper describes the development of an IF recorder for range TM. We discuss the usage of a recorder with multiple channels, time correlation, channel skew capability, IF over IP capabilities and file management will allow repeatable, realistic testing of TM systems.
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Askin, Cihat. "Early recorded violinists." Thesis, City University London, 1996. http://openaccess.city.ac.uk/7937/.
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The thesis 'Early Recorded Violinists' investigates 13 violinists, starting from Joseph Joachim as the earliest born violinist to have made gramophone recordings, to Mischa Elman. In the first chapter I examine and analyse the recordings of Joachim. In the next chapter I investigate Hugo Heermann's violin playing and technique. Heermann is a violinist with insufficient information published about him. In chapter 3, the work of Sarasate is illustrated with musical examples from his recordings and compositions, examining the combination of his musical and technical characteristics. Auer is examined as violinist and teacher in chapter 4. In the fifth chapter I intend to examine Eugene Ysaye who is one of the first exponents of the modern violin sound and continuous vibrato along with Kreisler. In chapter 6, we consider the founder of the Hungarian violin school JenO Hubay. His violin playing was influenced by national Hungarian music and my examples intend to give some information on that subject. Another 'national' violinist Maud Powell is investigated in chapter 7. She was influenced by her native American music and gave the first performances of many violin concertos in the United States. Another important teacher of the 20th century, Karl Flesch, is considered as a rival to Auer and is presented in chapter 8. Viennese violinist Fritz ICreisler is examined in chapter 9, his recordings and compositions give us important information on vibrato and portamento. Ysaye also influenced a younger generation of violinists, among them Jacques Thibaud whose recordings are examined in chapter 10. In chapters 11 and 12, two more 'national' violinists are examined with their recordings: Jan Kubelik and Georges Enescu. Auer's first internationally renowned pupil, Mischa Elman, is also examined in chapter 13.
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Morton, David Lindsay Jr. "The History of magnetic recording in the United States, 1888-1978." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/24235.
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Carpenter, Jennifer. "The recorder tutors in 't Uitnement kabinet." Thesis, connect to online resource, 2005. http://www.unt.edu/etd/all/Aug2005/carpenter%5Fjennifer%5Flee/index.htm.
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Damm, Bernt W. "The development of a piano-recorder system." Thesis, Cape Technikon, 1993. http://hdl.handle.net/20.500.11838/1155.
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Thesis (Masters Diploma (Electrical Engineering)--Cape Technikon, Cape Town, 1993This thesis describes the development and design of a pianorecorder system. This system makes it possible to record the notes played on a piano onto a computer disk. The records can then be used for the manufacturing of pianola rolls.
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Berard, Alfredo J., Tim Chalfant, Joe Lloyd, Marty Small, Mark Buckley, Balázs Bagó, and Michael Lockard. "WHO MOVED MY TAPE RECORDER FLAVORED CHEESE." International Foundation for Telemetering, 2002. http://hdl.handle.net/10150/607549.
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International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, CaliforniaFor the last 30 years Magnetic Tape Systems have been the primary means of recording data from airborne instrumentation systems. Increasing data rates and harsh environmental requirements have often exceeded the ability of tape-based systems to keep pace with platform technology. This paper examines operational and data reduction benefits when employing the IRIG 106 Chapter 10 Solid State Recorder Standard introduced by the Range Commanders Council (RCC) Telemetry Group (TG). The Standard and this paper address media formatting, data formatting for a variety of different data types, data downloading, and data security, along with serial command and control and discrete command and control of the recorder. This paper also addresses software data processing and raw data reconstruction of Chapter 10 data.
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Smith, Darren C., and Dean Tenderholt. "Development Goals for a Digital Airborne Recorder." International Foundation for Telemetering, 1997. http://hdl.handle.net/10150/609827.
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International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, NevadaThis paper addresses the development requirements for a digital recorder to be used for fighter environment and attack Helicopter applications. This development is focused on triservice requirements to allow for a common system to meet the needs of various test centers.
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Stoner, D. C., and T. F. F. Eklund. "Static RAM Data Recorder for Flight Tests." International Foundation for Telemetering, 1988. http://hdl.handle.net/10150/615241.
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International Telemetering Conference Proceedings / October 17-20, 1988 / Riviera Hotel, Las Vegas, NevadaA static Random Access Memory (RAM) data recorder has been developed to recover strain and acceleration data during development tests of high-speed earth penetrating vehicles. Bi-level inputs are also available for continuity measurements. An iteration of this system was modified for use on water entry evaluations.
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Claesson, Teresia. "The User Perspective on Recorder Functionality and Navigation Management : Result from a usability evaluation of a Personal Video Recorder." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-69594.
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The purpose of this study is to evaluate and give suggestions for interaction improvements to a user interface in a Personal Video Recorder. The study will focus on user learnability, user satisfaction, usability problems from the user interaction with the product and to make a set of interaction improvements. The participants performed a set of predefined tasks involving the recorder functionality and channel lists. The study involved three trials with seven tasks in each trial. The study showed that the time difference for Learnability – Time-on-Task between all trials were statistical significant for the user interface. The study also revealed a set of usability problems that were classified into different severity ratings. The study also showed that the participants were partly satisfied with the user interface.Uppsatsen är egentligen på 18hp, var tvungen att fylla i 16hp då rätt alternativ inte fanns att tillgå.
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Barclay, Alan Laverton. "The application of digital flight and event data recorders to improving helicopter flight safety." Thesis, University of Aberdeen, 2014. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=225738.
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The current state of international civilian (General Aviation) helicopter flight safety was perceived to be poor and without focus on the potential application of low-cost digital data acquisition devices to increase the quantity of flight data available for analysis, which could help identify issues leading to common incident and accident scenarios. The research project undertook a review of some of the common incident and accident scenarios, performed an analysis of the composition of the worldwide helicopter fleet and explored the interaction of operators, pilots, missions, and national aviation authorities, in order to understand and define the context for this study. Two radically different types of digital flight and event data recorders were then developed, which were considered appropriate for use in the most common small to medium sized helicopter types identified, in order to determine if reliable low-cost digital data acquisition was achievable. Also developed were software tools for extracting the recorded data sets and their processing/analysis. The proof of concept devices were flight tested, in a variety of environments by a number of helicopter operators and manufacturers in Europe and North America, in order to determine whether such simple devices actually returned useful flight data and in doing so contribute to improving flight safety by highlighting the occurrence of common issues. During the flight trials a number of real safety critical events were captured or observed, despite being flown for only a fraction of the time that would statistically elapse between incidents. Examination of the data sets revealed an abundance of information about pilot behaviour, which it will be argued substantiates the widely held belief that most accidents are caused by pilot error or negligence. It will be asserted that these results demonstrate that real improvements in training and flight safety can be achieved through the wide spread use of such proof of concept devices and their associated software tools. The international helicopter community has subsequently expressed a strong desire for such devices to become common place in small to medium sized helicopters.
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Brimbal, Michel, and Fred Kelly. "Universal Interface Between Telemetry Processors and Chart Recorders." International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/611922.
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International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, CaliforniaChart recorders currently in use on telemetry ranges are connected to telemetry processors via a series of Digital to Analog Converters (DAC) systems. A new modular interface system receives data directly from the processor broadcast bus and distributes them to up to ten digital chart recorders. This interface is programmed from a computer to assign individual tags to each one of the display channels. This system eliminates DAC's and patch panels. It simplifies display system operation, speeds up transition from test to test and reduces maintenance costs.
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Arons, Barry Michael. "Interactively skimming recorded speech." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/29072.
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Svee, Astrid. "Development and Testing of an Acoustic Plankton Recorder." Doctoral thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1477.
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Recent years have brought cross-disciplinary focus on possibilities, constraints and consequences of large scale zooplankton harvesting. Development of acoustic measurement technology is an important part of that work. Because of the small size of the plankton, the measurement frequencies have to be high compared to fishery acoustics. Based on a model of the size and shape of the plankton and its physical properties, the use of multiple frequency measurements will allow inverse modeling of the size and concentration of plankton. This thesis presents the development and test results of an Acoustical Plankton Recorder (APR). The system uses three frequencies, 200 kHz, 710 kHz, and 1 MHz. The system parameters are designed with a focus on measuring the zooplankton Calanus finmarchicus, which plays an important role in the Norwegian Sea ecosystem. The APR is a prototype instrument built to gain experience for future generations of instruments for plankton measurements. Different aspects of multi-frequency acoustical measurements are discussed with a focus on uncertainties and critical factors. The results from various experiments and measurements are presented. The estimated concentration of scatterers from data recovered by the Acoustical Plankton Recorder shows good agreement with biological samples.
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Christian, Mark Jay. "Post crash flight analysis: visualizing flight recorder data." Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/27214.
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Qian, Luo. "AuO : audio recorder and editor on the web." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/112388.
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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 129-130).
In grade school, students learn that human beings possess five main senses: sight, hearing, taste, smell, and touch. Of these, we currently can experience only the first two through a computer, and by extension, the Internet. Although web technologies have supported visual feedback since the earliest of times, only recently have browser provided web developers with audio technologies capable of recording, editing, and playing audio without resorting to external-to-browser plug-ins, such as ActionScript and Java. This presents a ripe opportunity for web applications to leverage the power of the web and deliver immersive auditory experience that appeal to users' ears. This thesis presents AuO, an online audio recording and editing application. Inspired by the needs of StarLogo Nova, AuO uses only HTML, CSS, and JavaScript to allow web developers to provide their users with the ability to record audio from their browsers, load audio from the Internet or users' machines, make edits to the audio, play back the audio as a preview, and save the audio to either the Internet or users' local filesystems. Designed with both web developers and users in mind, and implemented with the aim of delivering speedy and smooth experiences, AuO's development process, from conception to future work, documents the creation of the first integrable native-to-browser web audio recorder and editor.
by Luo Qian.
M. Eng.