Relevant bibliographies by topics / Ultrasonic Sensor

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  3. Books
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Academic literature on the topic 'Ultrasonic Sensor'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 March 2023

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Journal articles on the topic "Ultrasonic Sensor"

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As Shiddiq, Muhammad, Wildian Wildian, and Nini Firmawati. "Desain Sistem Pendeteksi Penghalang Menggunakan Sensor Ultrasonik dan Sensor Inframerah dengan Keluaran Suara untuk Penyandang Tunanetra." Jurnal Fisika Unand 9, no. 4 (January 25, 2021): 436–42. http://dx.doi.org/10.25077/jfu.9.4.436-442.2020.

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Penyandang tunanetra umumnya dalam beraktivitas sehari-hari mengalami banyak kesulitan sehingga memerlukan alat bantu untuk memudahkannya. Pada penelitian ini telah dibuat desain alat bantu berbentuk kacamata. Alat ini berupa desain sistem pendeteksi penghalang menggunakan sensor ultrasonik dan sensor inframerah dengan keluaran suara untuk penyandang tunanetra. Sistem perangkat alat bantu didesain dengan bentuk kacamata berbahan akrilik. Sistem perangkat keras ini terdiri dari modul arduino, dua buah sensor ultrasonik HC-SR04, sensor inframerah, Mp3 Player, dan headset. Sensor ultrasonik 1 digunakan untuk mendeteksi jarak penghalang didepan. Sensor ini mampu mendeteksi penghalang pada jarak (0-45) cm, (45-120) cm, atau (120-250) cm dengan Mp3 Player mengeluarkan suara 1, suara 2, atau suara 3. Jika sensor ultrasonik 1 mendeteksi adanya penghalang, maka sensor Inframerah akan aktif dan ikut mendeteksi penghalang tersebut. Sensor Inframerah yang mendeteksi radiasi inframerah manusia di depan sensor mengakibatkan Mp3 Player mengeluarkan suara 4. Jarak maksimum deteksi sensor inframerah sampai 700 cm dengan kondisi manusia bergerak dan 30 cm untuk manusia yang diam. Sensor ultrasonik 2 diatur untuk mendeteksi jarak kemiringan sebesar 60o terhadap permukaan lintasan, dimana sensor tersebut memiliki batas jarak kemiringan 73 cm sampai 89 cm yang sudah terprogram pada arduino. Jika sensor ultrasonik 2 mendeteksi adanya jarak kemiringan yang kurang dari 73 cm, maka Mp3 Player mengeluarkan suara 5, sedangkan jika jarak kemiringan sensor melebihi dari 89 cm, maka Mp3 Player mengeluarkan suara 6. Blind people generally experience many difficulties in their daily activities so they need tools to make it easier. In this research, a glasses-shaped tool has been designed. This tool is a barrier detection system design using ultrasonic sensors and infrared sensors with sound output for blind people. The system of assistive devices is designed in the form of glasses made from acrylic. This hardware system consists of the Arduino module, two HC-SR04 ultrasonic sensors, an infrared sensor, an Mp3 Player, and a headset. Ultrasonic sensor 1 is used to detect the distance of the barrier in front. This sensor can detect obstructions at a distance of (0-45) cm, (45-120) cm, or (120-250) cm with the Mp3 Player emitting 1 sound, 2 sound, or 3 sound. If the ultrasonic sensor 1 detects a barrier, then the infrared sensor will be active and will detect the barrier. An infrared sensor that detects human infrared radiation in front of the sensor causes the Mp3 Player to make a sound. 4. The maximum detection distance of the infrared sensor is up to 700 cm with human conditions moving and 30 cm for humans who are still. The ultrasonic sensor 2 is set to detect a slope distance of 60o against the track surface, where the sensor has a slope distance of 73 cm to 89 cm which has been programmed on Arduino. If the ultrasonic sensor 2 detects a tilt distance of less than 73 cm, the Mp3 Player makes a sound of 5, whereas if the sensor's tilt distance exceeds 89 cm, the Mp3 Player makes a sound of 6.
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Missa, Ivan Kavenius, Laura A. S. Lapono, and Abdul Wahid. "RANCANG BANGUN ALAT PASANG SURUT AIR LAUT BERBASIS ARDUINO UNO DENGAN MENGGUNAKAN SENSOR ULTRASONIK HC-SR04." Jurnal Fisika : Fisika Sains dan Aplikasinya 3, no. 2 (December 17, 2018): 102–5. http://dx.doi.org/10.35508/fisa.v3i2.609.

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Abstrak Telah dirancang sistem pasang surut air laut berbasis Arduino Uno dengan menggunakan sensor ultrasonik HC-SR04. Sensor ultrasonik berfungsi mengukur ketinggian air laut. Tampilan dari sistem ini berupa ketinggian air laut sesaat yang ditampilkan pada LCD. Selain itu hasil dari sistem ini juga berupa grafik pasang surut yang dirancang menggunakan software Delphi 7. Sistem ini telah diuji untuk melihat ketinggian air laut serta untuk menampilkan grafik pasang surut. Proses pengujian alat berlangsung di Dermaga DIT POL AIR NTT. Hasil pengujian menunjukkan bahwa sistem berjalan dengan baik. Dimana diperoleh data bahwa dalam satu hari pengukuran terjadi dua kali pasang dan dua kali surut yang merupakan tipe pasang surut harian ganda dengan puncak pasang tertinggi adalah 164 cm dan surut terendah dengan ketinggian 68 cm. Kata kunci: pasang surut; sensor ultrasonik HC-SR04; Arduino; Delphi Abstract [Title: Design of Sea Water Level Measurement Based on Arduino UNO and Using an Ultrasonic Sensor HC-SR04]. Arduino Uno tidal system has been designed using ultrasonic sensors HC-SR04. Ultrasonic sensors function to shave the sea water level. The display of this system is a momentary sea level displayed on the LCD. In addition the results of the system is also a tidal graph designed using Delphi 7 software. This system has been tested for viewing sea levels as well as for displaying tide charts. The tool testing process takes place at DIT POL AIR NTT Pier. The test results show that the system is running quite well. The data shows that two high and low tides occur daily. This is called semi-diurnal tide with the highest peak tide is 164 cm and the lowest tide is 68 cm. Keywords: tidal; ultrasonic sensor HC-SR04; Arduino; Delphi
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Purwaningsih, Sri, Jesi Pebralia, and Rustan Rustan. "PENGEMBANGAN TEMPAT SAMPAH PINTAR MENGGUNAKAN SENSOR ULTRASONIK BERBASIS ARDUINO UNO UNTUK LIMBAH MASKER." Jurnal Kumparan Fisika 5, no. 1 (April 30, 2022): 1–6. http://dx.doi.org/10.33369/jkf.5.1.1-6.

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ABSTRAK Penggunaan masker telah menjadi kewajiban dan gaya hidup baru bagi masyarakat menyebabkan peningkatan limbah masker. Tempat sampah masker didominasi oleh tempat sampah konvensional yakni pengguna harus membuka dan menutup penutup tempat sampah tersebut dengan menggunakan tangan atau pijakan kaki dan dapat menjadi ancaman sumber penularan baru COVID-19. Pada penelitian ini dikembangkan tempat sampah pintar untuk limbah masker menggunakan sensor dan motor servo berbasis Arduini Uno. Sensor yang digunakan adalah sensor ultrasonik HC-SR04 sebagai pendeteksi jarak dan pengukur volume sampah limbah masker medis. Motor servo befungsi membuka dan menutup tempat sampah dan dikontrol oleh Arduino Uno secara otomatis. Hasil kalibrasi sensot ultasonik HC-SR04 yang telah dilakukan menghasilkan persaman linier dan nilai R2= 0.9986. Hal ini menunjukkan sensor ultrasonik HC-SR04 dapat diaplikasikan dalam pengembangan tempat sampah pintar. Kata kunci: Arduino Uno, Motor Servo, Sensor Ultrasonik, Tempat Sampah Pintar ABSTRACT The use of masks has become a requirement and a new lifestyle for the community has led to an increase in mask waste. The trash bin for masks waste are dominated by conventional trash bin, where users have to open and close the lid of the trash bin by using hands or footrests and this can pose a threat to a new source of COVID-19 transmission. In this study, a smart trash bin for mask waste was developed using an Arduino Uno-based sensor and servo motor. The sensor used is the ultrasonic sensor HC-SR04 as a distance sensor and measuring the volume of medical mask waste. The servo motor used to open and close the trash bin and is controlled by Arduino Uno automatically. The results of the ultrasonic sensor HC-SR04 calibration that have been carried out produce a linear equation and the value of R2 = 0.9986. This shows that the ultrasonic sensor HC-SR04 can be applied in the development of smart trash bins. Keywords: Ardunino Uno, Servo Motor, Ultrasonic Sensor, Smart Trash
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HIDAYAT, DARMAWAN, FADHIL BOMA NAUFAL, and NENDI SUHENDI SYAFEI. "Pendeteksi Pelanggaran Lalu Lintas Kendaraan Lawan Arah berbasis Sensor Ultrasonik." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 10, no. 4 (October 27, 2022): 798. http://dx.doi.org/10.26760/elkomika.v10i4.798.

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ABSTRAKPelanggaran lalu lintas lawan arah kendaraan sepeda motor adalah pelanggaran yang banyak terjadi. Hal ini kerap menimbulkan korban. Makalah ini melaporkan prototipe sensor untuk deteksi pelanggaran lalu lintas lawan arah kendaraan sepeda motor di area lalu lintas Universitas Padjadjaran (Jatinangor) untuk keperluan pengelola dalam pengaturan lalu lintas kampus. Sistem sensor dibangun dari dua buah sensor ultrasonik (MB1030 MaxSonar EZ-3) untuk membaca arah pergerakan kendaraan. Sensor kendaraan mendeteksi pola spasial dan temporal gerakan kendaraan yang melintas. Pola pembacaan sensor ultrasonik diproses oleh mikrokontroller ATmega 328P dan hasilnya ditampilkan pada peraga LCD dan peraga buzzer. Data yang ditampilkan berupa jumlah pelanggaran lawan arah dan indikasi bunyi. Berdasarkan hasil pengujian, sistem dapat mendeteksi pelanggaran lawan arah sebesar 87,14%. Sistem ini juga dapat membedakan objek yang melintas antara kendaraan motor dengan pejalan kaki. Secara keseluruhan, sistem yang dibangun berfungsi sesuai rancangan untuk mendeteksi pelanggaran kendaraan sepeda motor lawan arah.Kata kunci: lawan arah, ultrasonik, kirim-pantul, spasial-temporal, mikrokontroler ABSTRACTOpposite direction traffic violations are the most occurrences of traffic violations. This often causes fatal human injuries. This paper reports a design of sensor for detection of opposite direction traffic violations of motorcycle vehicles in the internal traffic area of Universitas Padjadjaran, Jatinangor campus, for in-campus traffic management purposes. The sensor system is built from two ultrasonic sensors (MB1030 MaxSonar EZ-3) to detect the direction of vehicle object movement. The sensors detect the direction according to the spatial and temporal patterns. The ultrasonic sensor reading pattern is processed by the ATmega 328P microcontroller and the results are displayed on an LCD and a sound buzzer. The displayed parameter is the number of opposite directioan violation and a beep sound. Based on the testing results, the system can detect a violation of the opposite direction by 87.14%. This system enables to distinguish motor vehicles and pedestrians objects. In conclusion, the system functions as designed to detect violations of motorcycle in the opposite direction.Keywords: traffic violation, ultrasonic sensors, pulse-echo, spatial-temporal, microcontroller
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Umeda, Kazunori, Jun Ota, and Hisayuki Kimura. "Fusion of Multiple Ultrasonic Sensor Data and Image Data for Measuring an Object’s Motion." Journal of Robotics and Mechatronics 17, no. 1 (February 20, 2005): 36–43. http://dx.doi.org/10.20965/jrm.2005.p0036.

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Robot sensing requires two types of observation – intensive and wide-angle. We selected multiple ultrasonic sensors for intensive observation and an image sensor for wide-angle observation in measuring a moving object’s motion with sensors in two kinds of fusion – one fusing multiple ultrasonic sensor data and the other fusing the two types of sensor data. The fusion of multiple ultrasonic sensor data takes advantage of object movement from a measurement range of an ultrasonic sensor to another sensor’s range. They are formulated in a Kalman filter framework. Simulation and experiments demonstrate the effectiveness and applicability to an actual robot system.
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Yoshioka, Tetsuo. "Ultrasonic Sensor." Journal of the Acoustical Society of America 130, no. 5 (2011): 3171. http://dx.doi.org/10.1121/1.3662342.

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Granz, B., and G. Koehler. "Ultrasonic sensor." Journal of the Acoustical Society of America 92, no. 3 (September 1992): 1799. http://dx.doi.org/10.1121/1.403818.

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Kota, Masaharu. "Ultrasonic sensor." Journal of the Acoustical Society of America 104, no. 6 (December 1998): 3153. http://dx.doi.org/10.1121/1.424228.

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Oda, Kiyonari. "Ultrasonic sensor." Journal of the Acoustical Society of America 120, no. 2 (2006): 568. http://dx.doi.org/10.1121/1.2336633.

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Hashimoto, Masahiko. "Ultrasonic sensor." Journal of the Acoustical Society of America 122, no. 1 (2007): 18. http://dx.doi.org/10.1121/1.2756397.

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Dissertations / Theses on the topic "Ultrasonic Sensor"

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Beadle, Brad Michael. "Fiber optic sensor for ultrasound." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17869.

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Beadle, Brad Michael. "Fiber optic sensor for ultrasound." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/19173.

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FILHO, WAGNER MUNDY VALVERDE. "DEVELOPMENT OF FIBER OPTIC ACOUSTIC SENSOR FOR ULTRASONIC FLOWMETER." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2001. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=19330@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
AGÊNCIA NACIONAL DE PETRÓLEO
Nesta dissertação são relatadas as etapas que resultam na construção do protótipo de um receptor acústico a Fibra Óptica (RAFO). O trabalho faz parte de um projeto mais amplo visando o desenvolvimento de um medidor de vazão sônico baseado em fibras ópticas. Nesta fase inicial, os esforços foram voltados para a concepção, construção e testes do protótipo do transdutor, responsável pela deteção dos sinais sônicos emitidos por uma fonte, baseado em tecnologia de fibras ópticas. O uso de um sensor extrínseco foi a solução aqui empregada, que adota uma proposta de medição diferente da utilizada em medidores de vazão sônicos convencionais. O sistema de medição de vazão proposto na linha de pesquisa na qual este trabalho está inserido, baseia-se em medidas de tempo de transito para daí inferir a vazão volumétrica do fluido que escoa pelo duto. O sistema foi concebido para operar apenas numa banda estreita de frequências, casada com o sinal senoidal emitido pela fonte sonora. Neste trabalho um receptor acústico a fibra óptica foi projetado, montado e testado, tendo seu funcionamento sido demonstrado para freqüências de operação em torno de 3,2 kHz. A escolha desta faixa de frequências deveu-se basicamente a limitações do sistema de leitura optoeletronico utilizado nos testes de medição. Entretanto, uma vez que o princípio de funcionamento foi demonstrado com sucesso, não existem limitações para o re-dimensionamento do sensor de forma que este possa vir a operar em bandas de freqüência mais elevadas.
This thesis reports the steps that have led to the assemblage and testing of na optical fiber microphone. This is part of a greater effort directed towards the development a sonic flowmeter based on optical fiber technology. In this first phase of the project, focus has been placed on the conception, construction, and testing, of the acoustic receiver first prototype. This transducer will be responsible for capturing the acouustical signails sent by an emitter, also based on optical fiber technology, and which is yet to be developed. In constrast with conventional sonic flowmeters, in which time of flight of acoustical pulses is the measured quantity related to flow rate, we are proposing a system based on measurement of phase difference between emitted and received sinusoidal signals.Hence, the acoustic receiver has been conceived to operate in a narrow frequency band. In particular, the developed prototype has been designed to operate in a frequency band centered at 3.2 kHz. This choice has been dictated by the response of the optoeletronic circuit employed in tests performed with the receiver operating in air and water. Nevertheless, since the principle of operation has been measurement of acoustical signails in higher frequency bands.
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Kranz, Michael S. "Micro-mechanical sensor for the spectral decomposition of acoustic signals." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39496.

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An array of electret-biased frequency-selective resonant microelectromechanical system (MEMS) acoustic sensors was proposed to perform analysis of stress pulses created during an impact between two materials. This analysis allowed classification of the stiffness of the materials involved in the impact without applying post-impact signal processing. Arrays of resonant MEMS sensors provided filtering of the incident stress pulse and subsequent binning of time-domain waveforms into frequency-based spectra. Results indicated that different impact conditions and materials yielded different spectral characteristics. These characteristics, as well as the resulting sensor array responses, are discussed and applied to impact classification. Each individual sensor element in the array was biased by an in situ charged electret film. A microplasma discharge apparatus embedded within the microsensor allowed charging of the electret film after all device fabrication was complete. This enabled electret film integration using high-temperature surface micromachining processes that would typically lead to discharge of traditionally formed electret materials. This also eliminated the traditional wafer-bonding and post-fabrication assembly processes required in conventional electret integration approaches. The microplasma discharge process and resulting electret performance are discussed within the context of the MEMS acoustic sensor array.
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Salido, Monzú David, and Sánchez Oliver Roldán. "Robot Positioning System : Underwater Ultrasonic Measurement." Thesis, Mälardalen University, School of Innovation, Design and Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-5817.

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This document provides a description about how the problem of the detection of thecenter of a defined geometry object was solved.This named object has been placed in an experimental environment surrounded bywater to be explored using microwaves under the water, to try to find a possibletumor. The receiver antenna is fixed in the tip of the tool of an ABB robot.Due to this working method, it was necessary to locate the center of this object tomake correctly the microwave scanning turning always around the actual center. Thiswork not only consist in give a hypothetic solution to the people who gave us theresponsibility of solve their problem, it is also to actually develop a system whichcarries out the function explained before.For the task of measuring the distance between the tip of the tool where themicrowave antenna is, ultrasonic sensors has been used, as a complement of acomplete system of communication between the sensor and finally the robot handler,using Matlab as the main controller of the whole system.One of these sensors will work out of water, measuring the zone of the object which isout of the water. In the other hand, as the researching side of the thesis, a completeultrasonic sensor will be developed to work under water, and the results obtained willbe shown as the conclusion of our investigation.The document provides a description about how the hardware and software necessaryto implement the system mentioned and some equipment more which were essentialto the final implementation was developed step by step.

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Atkinson, David. "Evaluation of an active acoustic waveguide sensor for embedded structural monitoring." Thesis, University of Strathclyde, 2000. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21138.

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This Thesis describes research aimed towards the realisation of an embedded ultrasonic monitoring system for operation in a smart structure environment. Alien fibres embedded within carbon fibre reinforced composite plates could be utilised to guide ultrasound to strategic release points for the interrogation of the test sample, with minimal structural degradation. In particular, an array of fibre waveguides could be utilised to deliver periodic stresses to a plate-type structure to excite Lamb wave propagation. With such a system several problems need to be addressed. Firstly, identification of an appropriate mode of propagation to transport the acoustic energy along the waveguide and meet the requirements of the system is required. Theoretical analysis of elastic wave propagation in cylinders is provided to establish the characteristics of the various supported modes. Subsequently, the longitudinal (axisymmetric) modes are highlighted as being the most appropriate for the proposed system. Ideally, such a mode should be singly generated to provide increased control on the coupling of ultrasound from the waveguide to the desired Lamb wave mode. Therefore, the transducer-fibre interface utilised for efficient single mode generation in the fibre waveguides is essential. This Thesis investigates a novel, cheap, simple, and robust coupling strategy, which employs a conical polymer bond to behave as a mechanical transformer efficiently coupling the lateral displacements of a piezoceramic transducer into longitudinal displacements in the waveguide. Theoretical and experimental analysis of this technique are described and design guidelines detailed. The Thesis then goes on to provide experimental and theoretical evidence of the fibre waveguide's ability to transport acoustic energy to and from plate-type structures for subsequent Lamb wave generation and detection. Initially, a surface mount strategy is adopted, whereby the ends of several thin cylindrical waveguides are bonded to the surface of aluminium plates to behave as a line array. Generation and detection of the fundamental symmetric (So) and asymmetric (A0) Lamb wave modes is demonstrated. Following this, the Thesis details considerations concerning the realisation of an embedded fibre waveguide monitoring system. Here, the choice of waveguide material and geometry is crucial to ensure the guided ultrasound does not leak into the structure at undesirable locations and that the structural integrity of the test sample is maintainable. Consequently, various waveguide configurations are investigated to establish an arrangement capable of meeting the system requirements. An embedded fibre waveguide Lamb wave system is then presented in a hard-setting polymer plate confirming the basic design methodology. Finally, So Lamb wave generation and detection in a carbon fibre reinforced composite plate is demonstrated utilising embedded acoustic waveguides sensors.
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Moisan, Jean-Francois. "Ultrasonic monitoring of die-casting process using clad buffer rod sensor." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32968.

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In-line monitoring of die-casting of aluminum (A356, A357, 86S), magnesium (AZ91) and a metal matrix composite (Gra-NiRTM 6S:3G) will be monitored using the reflection coefficient obtained by using an ultrasonic technique, the pulse/echo. For each of the materials enumerated above, the average temperature of the mold through its thickness, the end of filling of the part, the solidification of the part in the cavity of the mold, the gap and/or the detachment of the part, the sound velocity and the attenuation of the material will be measured by this ultrasonic technique during the process.
For the materials the melt temperature will not exceed 600°C because the casting is made at the semi-solid state, between the solidus and liquidus, of the materials. A novel high performance buffer rod with a cooling system is integrated into the die. Therefore, ultrasonic measurements can be carried out with high signal-to-noise ratio at elevated temperatures.
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Alzebda, Said Anwar. "Low-cost oscillating sensor for ultrasonic testing and monitoring of liquids." Thesis, University of Nottingham, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.546599.

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McLean, Jeffrey John. "Interdigital Capacitive Micromachined Ultrasonic Transducers for Microfluidic Applications." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/7625.

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The goal of this research was to develop acoustic sensors and actuators for microfluidic applications. To this end, capacitive micromachined ultrasonic transducers (cMUTs) were developed which generate guided acoustic waves in fluid half-spaces and microchannels. An interdigital transducer structure and a phased excitation scheme were used to selectively excite guided acoustic modes which propagate in a single lateral direction. Analytical models were developed to predict the geometric dispersion of the acoustic modes and to determine the sensitivity of the modes to changes in material and geometric parameters. Coupled field finite element models were also developed to predict the effect of membrane spacing and phasing on mode generation and directionality. After designing the transducers, a surface micromachining process was developed which has a low processing temperature of 250C and has the potential for monolithically integrating cMUTs with CMOS electronics. The fabrication process makes extensive use of PECVD silicon nitride depositions for membrane formation and sealing. The fabricated interdigital cMUTs were placed in microfluidic channels and demonstrated to sense changes in fluid sound speed and flow rate using Scholte waves and other guided acoustic modes. The minimum detectable change in sound speed was 0.25m/s, and the minimum detectable change in flow rate was 1mL/min. The unique nature of the Scholte wave allowed for the measurement of fluid properties of a semi-infinite fluid using two transducers on a single substrate. Changes in water temperature, and thus sound speed, were measured and the minimum detectable change in temperature was found to be 0.1C. For fluid pumping, interdigital cMUTs were integrated into microchannels and excited with phase-shifted, continuous wave signals. Highly directional guided waves were generated which in turn generated acoustic streaming forces in the fluid. The acoustic streaming forces caused the fluid to be pumped in a single, electronically-controlled direction. For a power consumption of 43mW, a flow rate of 410nL/min was generated against a pressure of 3.4Pa; the thermodynamic efficiency was approximately 5x10-8%. Although the efficiency and pressure head are low, these transducers can be useful for precisely manipulating small amounts of fluid around microfluidic networks.
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Krsmanovic, Dalibor. "High temperature ultrasonic gas flow sensor based on lead free piezoelectric material." Thesis, University of Cambridge, 2011. https://www.repository.cam.ac.uk/handle/1810/245065.

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The review of current technologies for measurement of gas velocity in stack flow applications is undertaken and it is shown that the ultrasonic time-of-flight method is the most suitable and offers a number of advantages over alternatives. Weakness of current piezoelectric based transducers are identified as the inability to operate at temperatures above 400 °C due to limitation of piezoelectric materials used, and a case for development of an alternative high temperature material is put forward. A novel and highly enhanced, lead free piezoelectric material, suitable for continuous operation at temperatures above 400 °C has been engineered for ultrasonic gas velocity sensor applications. Structural modification of pure bismuth titanate (Bi4Ti3O12) or BIT compound, through multi-doping at the Ti-site, has been found to enhance piezoelectric properties accompanied with a mild reduction in Curie temperature, Tc. Initially, compounds doped with tungsten and chromium were found to increase the piezoelectric coefficient (d33) from around 5 pC N¯¹ in pure bismuth titanate, to above 20 pC N¯¹ in doped compounds. This increase is attributed to lower conductivity and improved poling conditions. Further increases in d33 (up to 35 pC N¯¹) were then realised through controlled grain growth and reduction in conductivity for niobium, tantalum and antimony doped compounds. The Curie temperature of the material with best properties is found to be 667 °C, which is a slight reduction from 675 °C for pure bismuth titanate ceramic. The enhancements in modified bismuth titanate achieved in present work allow the material to be considered as suitable for high temperature ultrasonic transducer applications. Integration of bismuth titanate material into a working high temperature transducer is then considered and the investigation of suitable, high temperature bonding method is undertaken. It is shown that reactivity of bismuth titanate with the titanium based fillers makes brazing unsuitable as a bonding method between piezo-ceramics and stainless steel. A novel assembly method, using liquid gallium as an electrically conductive bond, and a mechanical restraint for the piezo actuator is then presented as an alternative with the potential to reduce the negative effects of differences in thermal expansion coefficients between constituents of the transducer assembly.
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Books on the topic "Ultrasonic Sensor"

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Malapetsas, Tasos. The industrial sensor business. Norwalk, CT: Business Communications Co., 1997.

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Mullally, Margaret L. A competitive analysis of the U.S. sensor industry. [Cleveland]: Leading Edge Reports, 1988.

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Asher, R. C. Ultrasonic sensors for chemical and process plant. Bristol: Institute of Physics Pub., 1997.

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Miller, Richard Kendall. Survey on ultrasonic sensors. Madison, GA: Future Technology Surveys, 1989.

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Strickland, W. H. Characteristics of ultrasonic ranging sensors in an underground environment. Washington, D.C: U.S. Dept. of the Interior, Bureau of Mines, 1993.

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Strickland, W. H. Characteristics of ultrasonic ranging sensors in an underground environment. Washington, D.C: U.S. Dept. of the Interior, Bureau of Mines, 1993.

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United States. National Aeronautics and Space Administration., ed. Detection of in-plane displacements of acoustic wave fields using extrinsic Fizeau fiber interferometric sensors. [Washington, DC: National Aeronautics and Space Administration, 1991.

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Ultrasonic transducers: Materials and design for sensors, actuators and medical applications. Cambridge [u.a.]: Woodhead Pub., 2012.

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Hornung, Mark R. Micromachined Ultrasound-Based Proximity Sensors. Boston, MA: Springer US, 1999.

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Rupp, J. O. C. Development of two EMAT sensors for the detection of ultrasonic lamb waves. Manchester: UMIST, 1994.

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Book chapters on the topic "Ultrasonic Sensor"

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Baumann, Peter. "Ultrasonic Transducer." In Selected Sensor Circuits, 221–43. Wiesbaden: Springer Fachmedien Wiesbaden, 2022. http://dx.doi.org/10.1007/978-3-658-38212-4_9.

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Lu, Wei. "Introducing the Touch Sensor and Ultrasonic Sensor." In Beginning Robotics Programming in Java with LEGO Mindstorms, 183–91. Berkeley, CA: Apress, 2016. http://dx.doi.org/10.1007/978-1-4842-2005-4_10.

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Monchaud, S. "SONAIR Ultrasonic Range Finders." In Sensor Devices and Systems for Robotics, 111–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74567-6_9.

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Juluru, Anudeep, Shriram K. Vasudevan, and T. S. Murugesh. "Overflow Detection Using Ultrasonic Sensor." In Let's Get IoT-fied!, 151–71. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003147169-10.

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Steiner, J. P. "Conventional IR and Ultrasonic Sensor Systems." In Handbook of Advanced Lighting Technology, 465–513. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-00176-0_64.

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Steiner, J. P. "Conventional IR and Ultrasonic Sensor Systems." In Handbook of Advanced Lighting Technology, 1–49. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-00295-8_64-1.

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Hanzel, Jaroslav, Marian Klúčik, Ladislav Jurišica, and Anton Vitko. "Identification Based Model of Ultrasonic Sensor." In Communications in Computer and Information Science, 144–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21975-7_14.

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Urban, H. "Ultrasonic Imaging for Industrial Scene Analysis." In Sensor Devices and Systems for Robotics, 127–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74567-6_10.

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Martín, J. M., R. Ceres, J. No, and L. Calderón. "Adaptative Ultrasonic Range-Finder for Robotics." In Sensor Devices and Systems for Robotics, 143–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74567-6_11.

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Samaitis, Vykintas, Elena Jasiūnienė, Pawel Packo, and Damira Smagulova. "Ultrasonic Methods." In Structural Health Monitoring Damage Detection Systems for Aerospace, 87–131. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72192-3_5.

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AbstractUltrasonic inspection is a well recognized technique for non-destructive testing of aircraft components. It provides both local highly sensitive inspection in the vicinity of the sensor and long-range structural assessment by means of guided waves. In general, the properties of ultrasonic waves like velocity, attenuation and propagation characteristics such as reflection, transmission and scattering depend on composition and structural integrity of the material. Hence, ultrasonic inspection is commonly used as a primary tool for active inspection of aircraft components such as engine covers, wing skins and fuselages with the aim to detect, localise and describe delaminations, voids, fibre breakage and ply waviness. This chapter mainly focuses on long range guided wave structural health monitoring, as aircraft components require rapid evaluation of large components preferably in real time without the necessity for grouding of an aircraft. In few upcoming chapters advantages and shortcommings of bulk wave and guided wave ultrasonic inspection is presented, fundamentals of guided wave propagation and damage detection are reviewed, the reliability of guided wave SHM is discussed and some recent examples of guided wave applications to SHM of aerospace components are given.
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Conference papers on the topic "Ultrasonic Sensor"

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Dimitrov, Atanas, and Dimitar Minchev. "Ultrasonic sensor explorer." In 2016 19th International Symposium on Electrical Apparatus and Technologies (SIELA). IEEE, 2016. http://dx.doi.org/10.1109/siela.2016.7542987.

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"A 3D Printed, Constriction-Resistive Sensor for the Detection of Ultrasonic Waves." In Structural Health Monitoring. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901311-33.

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Abstract. Ultrasonic waves, either bulk waves or guided waves, are commonly used for non-destructive evaluation, for example in structural health monitoring. Traditional sensors for detecting ultrasonic waves include metallic strain gauges and piezoelectric ceramics. Recently piezoresistive nanocomposites have emerged as a promising sensor with high sensing range. In this paper, a constriction-resistive based sensor made from a graphene reinforced PLA filament is developed using a fused deposition modelling 3D printing approach as a novel type of ultrasonic sensor for structural health monitoring purposes. The sensor is made of very low-cost and recyclable thermoplastic material, which is lightweight and can be either directly printed onto the surface of various engineering structures, or embedded into the interior of a structure via fused filament fabrication 3D printing. These characteristics make this sensor a promising candidate compared to the traditional sensors in detecting ultrasonic waves for structural health monitoring. The printed sensors can detect ultrasonic signals with frequencies around 200 kHz, with good signal-to-noise ratio and sensitivity. When deployed between two adjacent printed tracks , and exploiting a novel kissing-bond mechanism, the sensor is capable of detecting ultrasonic waves. Several confirmatory experiments were carried out on this printed sensor to validate the capability of the printed sensor for structural health monitoring.
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Wenzel, S. W., E. R. Minami, J. S. Huang, and R. M. White. "Ultrasonic-Oscillator Position Sensor." In IEEE 1987 Ultrasonics Symposium. IEEE, 1987. http://dx.doi.org/10.1109/ultsym.1987.199030.

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Spratt, William K., John F. Vetelino, and Lawrence C. Lynnworth. "Torsional ultrasonic waveguide sensor." In 2010 IEEE Ultrasonics Symposium (IUS). IEEE, 2010. http://dx.doi.org/10.1109/ultsym.2010.5935797.

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Grasland-Mongrain, Pol, Bruno Gilles, Jean-Martial Mari, Jean-Yves Chapelon, and Cyril Lafon. "Electromagnetic tomographic ultrasonic sensor." In 163rd Meeting Acoustical Society of America/ACOUSTCS 2012 HONG KONG. ASA, 2013. http://dx.doi.org/10.1121/1.4826489.

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Cai, Xiaofeng, and Robert X. Gao. "Ultrasonic Sensor Placement Strategy for a Long Cane." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0080.

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Abstract This paper addresses the placement strategy of ultrasonic sensors to be embedded into a long cane to serve as an electronic aid for the visually impaired. The strategy is based on performance measures for overhanging obstacle detection, which include detectable spatial zone, measurement accuracy, and long cane dynamics. A finite element analysis has been performed to simulate the vibratory response of a long cane with embedded sensors. Experiments have been conducted to verify the analytically derived results. The study provided insight for an optimized structural design of a new type of sensor-embedded long cane that can be used as an effective electronic travel aid for the blind.
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Henning, Bernd, Jens Rautenberg, Andreas Schroeder, and Carsten Unverzagt. "A2.1 - Ultrasonic Sensors for Process Applications." In SENSOR+TEST Conferences 2009. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2009. http://dx.doi.org/10.5162/sensor09/v1/a2.1.

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Bicz, Wieslaw, Zbigniew Gumienny, and Mieczyslaw Pluta. "Ultrasonic sensor for fingerprints recognition." In Optoelectronic and Electronic Sensors, edited by Ryszard Jachowicz and Zdzislaw Jankiewicz. SPIE, 1995. http://dx.doi.org/10.1117/12.213142.

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Byun, Eunjeong, Juhong Nam, Hyunji Shim, Esther Kim, Albert Kim, and Seunghyun Song. "Ultrasonic Hydrogel Biochemical Sensor System." In 2020 42nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) in conjunction with the 43rd Annual Conference of the Canadian Medical and Biological Engineering Society. IEEE, 2020. http://dx.doi.org/10.1109/embc44109.2020.9176216.

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Tam, Andrew, and Sazzadur Chowdhury. "A MEMS Sonoluminescent Ultrasonic Sensor." In 2006 IEEE International Conference on Electro/Information Technology. IEEE, 2006. http://dx.doi.org/10.1109/eit.2006.252194.

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Reports on the topic "Ultrasonic Sensor"

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Dagle, W. R. Ultrasonic Oxygen Sensor. Fort Belvoir, VA: Defense Technical Information Center, December 1987. http://dx.doi.org/10.21236/ada189723.

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J. E. Daw, J.L Rempe, A.J. Palmer, B. Tittmann, and B. NEET In-Pile Ultrasonic Sensor Enablement-FY-2013. Office of Scientific and Technical Information (OSTI), September 2013. http://dx.doi.org/10.2172/1097698.

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Daw, J., J. Rempe, J. Palmer, P. Ramuhalli, R. Montgomery, H. Chien, B. Tittmann, B. Reinhardt, and P. Keller. NEET In-Pile Ultrasonic Sensor Enablement-Final Report. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1166037.

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Daw, Joshua, Anthony Crawford, Richard Skifton, Lance Hone, Pradeep Ramuhalli, Richard Jacob, Andrew Cassella, and Robert Montgomery. Design Requirements for Ultrasonic Deformation Sensor for TREAT Experiments. Office of Scientific and Technical Information (OSTI), June 2018. http://dx.doi.org/10.2172/1634003.

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Daw, Joshua, Lance Hone, Andrew Casella, Richard Jacob, Robert Montgomery, and Pradeep Ramuhalli. Integration Testing of Ultrasonic Deformation Sensor for TREAT Experiments. Office of Scientific and Technical Information (OSTI), October 2019. http://dx.doi.org/10.2172/1668671.

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JT Evans. Testing Results of Magnetostrictive Ultrasonic Sensor Cables for Signal Loss. Office of Scientific and Technical Information (OSTI), May 2005. http://dx.doi.org/10.2172/883695.

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JE Daw, JL Rempe, BR Tittmann, B Reinhardt, P Ramuhalli, R Montgomery, and HT Chien. NEET In-Pile Ultrasonic Sensor Enablement-FY 2012 Status Report. Office of Scientific and Technical Information (OSTI), September 2012. http://dx.doi.org/10.2172/1058076.

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Yurchenko, Oleksandr, Sergiy Kolyenov, Yuriy Pilgun, Galyna Pogorielova, Oleksandr Polishko, and Eugene Smirnov. Total Internal Reflection Ultrasonic Sensor for Detection of Subsurface Flaws: Research into Underlying Physics. Fort Belvoir, VA: Defense Technical Information Center, November 2014. http://dx.doi.org/10.21236/ada620159.

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Mizrach, Amos, Sydney L. Spahr, Ephraim Maltz, Michael R. Murphy, Zeev Schmilovitch, Jan E. Novakofski, Uri M. Peiper, et al. Ultrasonic Body Condition Measurements for Computerized Dairy Management Systems. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568109.bard.

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The body condition (BC) score is recognized in the dairy industry as an essential tool for managing the energy reserves of the dairy cow, which is essential for sustaining optimal and efficient production over several lactations. The current use of BC scoring depends on the accuracy of subjective visual estimates, and this limits its kusefulness as a management aid in the dairy industry. A measuring tool that would frequently provide objective data on the cow's body reserves would be a major contribution to efficient dairy herd management. Ultrasonic sensors have the potential to be developed into an efficient BC measuring device, and the experimental use of such sensors for subcutaneous fat thickness (SDFT) estimates, as an indication for BC in beef cattle, supports this assumption. The purposes of this project were: 1. To compare visual BC scoring and ultrasonic fat thickness with on-line automated body weight (BW) measurements as monitors of nutritional adequacy of dairy cows at various stages of lactation. 2. To determine the effects of variation in digestive fill in early and late lactation on the accuracy of body weight measurements in lactating cows. 3. To modify an existing ultrasonic system and develop a specialized, low-cost sensor for repeatable determination of body condition scores by users with minimal training and skill. 4. To develop a standard for the assignment of body condition scores based on ultrasonic measurements of subdermal fat thickness. The procedure to execute these objectives involved: 1. Frequent measurement of BW, milk yield (MY), BC (visually scored) and subdermal fat thickness ultrasonically measured of dairy cows, and data analysis on average and individual basis. 2. Testing and selection of an appropriate special-purpose sensor, finding an optimum body location for working an ultrasonic measurement, prcessing the signals obtained, and correlating the resulting measurements with performance responses in lactating cows. Linking the ultrasonic signals to BC scores, and developing a BC scoring data acquisition system are the first steps towards fulfilling the necessary requirements for incorporating this device into an existing dairy herd management system, in order to provide the industry with a powerful managment tool. From the results obtained we could conclude that: 1. BC does not correlate with BW changes during all stages of lactation, although in general terms it does. These results were confirmed by individual cow BW and BC data obtained during the course of lactation, that were supported by individual objective ultrasonic measurement of SDFT. 2. BW changes reflect energy metabolism reliably ony after peak milk yield; early in lactation, a decrease in BW expresses mobilization of body reserves only qualitatively, and not quantitatively. 3. Gastrointestinal content increases throughout the whole period during which dry matter intake (DMI) increases. The drastic increase very early in lactation prevents the use of BW changes as a basis for quantitative estimatio of energy meatabolism; at this stage of lactation, konly a BC score or any other direct measurements willl provide a quantitative estimate of energy metabolism. 4. Ultrasonic measurements of subdermal fat thickness can be used to quantify changes that correlate with the actual condition of the cow, as assessed by performance and the traditional way of scoring. 5. To find the best site on the cow's body at which to obtain responses to BC and its changes in the course of lactation, additional sites have to be examined. From the present study, it seems that the sites between ribs 12 and 13 have the potential for this purpose. 6. The use of templates made it easier to repeat measurements at a desired site and spot. However, the convenient easy-to-handle way to standardize the measurement, described in this study, koffers scope for improvement. 7. The RF peak values of the A-mode are better indicators of the location of fat layer borders than image analysis, from the point of view of future commercial development. 8. The distances between the RF peaks of the A-mode can be automatically measured by suitable software, for future commercial development. 9. Proper analysis of daily body weight and milk yield data can provide the necessary information on body condition changes during lactation, until a direct BC measurement device is developed. 10. In any case, at least one visual BC assessment has to be done, preferably immediately after calving, for calibration purposes.
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Ray, Jason, and Clayton Thurmer. 2020 guided wave inspection of California Department of Water Resources tainter gate post-tensioned trunnion anchor rods : Oroville Dam. Engineer Research and Development Center (U.S.), March 2022. http://dx.doi.org/10.21079/11681/43762.

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The Engineering and Test Branch within the Division of Operations and Maintenance of the California Department of Water Resources (DWR) and U.S. Army Corps of Engineers (USACE), Sacramento District, tasked the Sensor Integration Branch (SIB) at the Engineer Research and Develop-ment Center (ERDC) to perform non-destructive testing (NDT) on the trunnion anchor rods at Oroville Dam through the use of ultrasonic guided waves. This is the third year of this NDT. The results of the testing are presented along with qualitative analysis in determining whether a rod is in-tact or compromised. Analysis is based upon the expected results from other rods at the site, knowledge of rod response at other sites, data gathered from the trunnion rod research test bed at the ERDC, and comparison to the previous year’s effort.
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