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Dissertations / Theses on the topic 'Vacuum Sensor'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Blomqvist, Anneli. "Millimeter Wave Radar as Navigation Sensor on Robotic Vacuum Cleaner." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288146.

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Does millimeter-wave radar have the potential to be the navigational instrument of a robotic vacuum cleaner in a home? Electrolux robotic vacuum cleaner is currently using a light sensor to navigate through the home while cleaning. Recently Texas Instruments released a new mmWave radar sensor, operating in the frequency range 60-64 GHz. This study aims to answer if the mmWave radar sensor is useful for indoor navigation. The study tests the sensor on accuracy and resolution of angles and distances in ranges relevant to indoor navigation. It tests if various objects made out of plastic, fabric,

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2

Antelius, Mikael. "Wafer-scale Vacuum and Liquid Packaging Concepts for an Optical Thin-film Gas Sensor." Doctoral thesis, KTH, Mikro- och nanosystemteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-119839.

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This thesis treats the development of packaging and integration methods for the cost-efficient encapsulation and packaging of microelectromechanical (MEMS) devices. The packaging of MEMS devices is often more costly than the device itself, partly because the packaging can be crucial for the performance of the device. For devices which contain liquids or needs to be enclosed in a vacuum, the packaging can account for up to 80% of the total cost of the device. The first part of this thesis presents the integration scheme for an optical dye thin film NO2-gas sensor, designed using cost-efficient

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3

Domenegueti, José Francisco Miras. "Sensor de umidade e vácuo baseado na reflexão interna." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-09092014-113655/.

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No presente trabalho propomos a utilização de uma técnica refratométrica baseada na determinação do ângulo crítico para o desenvolvimento de um sensor de umidade relativa e, no mesmo escopo de aplicação, um medidor de vácuo primário. A técnica proposta tira vantagem da diferença de fase adquirida pelas componentes paralela e perpendicular de um feixe luminoso, linearmente polarizado, passando por reflexão interna, para produzir um laser de HeNe sintonizável, um polarizador, um prisma semicilíndrico de índice de refração conhecido fabricado em vidro tipo flint, um analisador, um mínimo de inten

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4

Beermann, Rüdiger [Verfasser]. "Structured Light Sensor with Affine Stereo Camera Pair for Geometry Measurements of High-Temperature Components in Rough Vacuum / Rüdiger Beermann." Garbsen : TEWISS - Technik und Wissen GmbH, 2021. http://d-nb.info/1229012583/34.

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5

Schäfer-Nolte, Eike Oliver [Verfasser], and Jörg [Akademischer Betreuer] Wrachtrup. "Development of a diamond-based scanning probe spin sensor operating at low temperature in ultra high vacuum / Eike Oliver Schäfer-Nolte. Betreuer: Jörg Wrachtrup." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2014. http://d-nb.info/1052894151/34.

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6

Ricci, Francesco 1987. "Levitodynamics toward force nano-sensors in vacuum." Doctoral thesis, Universitat Politècnica de Catalunya, 2019. http://hdl.handle.net/10803/666188.

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Levitodynamics addresses the levitation and manipulation of micro- and nanoresonators with the purpose of studying their dynamics. This emerging field has attracted much attention over the last few years owing to unprecedented performances in terms of mechanical quality factors, cooling rates at room temperature, and ultra-high force sensitivities. In this thesis, I establish the use of an optically levitated and electrically driven charged silica nanoparticle as a promising and reliable force sensor in vacuum. The first two experiments discussed in this work seek a deeper knowledge and a high

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7

Torunbalci, Mert Mustafa. "Wafer Level Vacuum Packaging Of Mems Sensors And Resonators." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613015/index.pdf.

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This thesis presents the development of wafer level vacuum packaging processes using Au-Si eutectic and glass frit bonding contributing to the improvement of packaging concepts for a variety of MEMS devices. In the first phase of this research, micromachined resonators and pirani vacuum gauges are designed for the evaluation of the vacuum package performance. These designs are verified using MATLAB and Coventorware finite element modeling tool. Designed resonators and pirani vacuum gauges and previously developed gyroscopes with lateral feedthroughs are fabricated with a newly developed Silico

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8

Bergman, Joel, and Johan Lind. "Robot Vacuum cleaner." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264502.

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Although a robot vacuum cleaner is a well-known product, development is still interesting. Better working sensors and more sophisticated algorithms and sensors are used in new cleaners. The purpose with this thesis was to learn more about different sensors, algorithms, and designs of robot vacuum cleaners, to try ideas and to find improvements to implement on the demonstrator. The initial work was to make a market investigation to find customer needs and expectations. Also making a rough design and layout for the mechanical and electrical system. The budget for the demonstrator was 1000 SEK. U

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9

Stevens, Amy Victoria. "Novel solid electrolyte sensors for the selective detection of hydrocarbons in vacuum." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608728.

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10

Silva, Elisabeth Mary Cunha da. "Chemical and sensory investigations on the processing and preservation of a lamb product." Thesis, Queen's University Belfast, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324852.

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11

Iborra, Bernad María del Consuelo. "Comparison of vacuum treatments and traditional cooking in vegetables using instrumental and sensory analysis." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/32953.

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Los objetivos de la presente tesis fueron comparar el efecto de tres técnicas de cocción en varios vegetales y su selección para cada producto estudiado. Para ello, los trabajos realizados han considerado los cambios en las propiedades físico-químicas, nutricionales, sensoriales y la microestructura. Asimismo, como respuesta al reto de aplicar tratamientos equivalentes en firmeza con diferentes técnicas de cocción se ha propuesto una metodología que combina los diseños experimentales de superficie respuesta (RSM) con análisis instrumentales y sensoriales. Los tratamientos térmico

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12

Matějů, Jan. "Řídicí jednotka pro robotický vysavač." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219701.

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This paper is in introduction focused on review of robotic vacuum cleaning and evaluation of available products qualities. However the main focus of this paper is system design of all subsystems, control systems and PCD design of robot electronics. In this paper is also described a method for evaluating approximate distance of robot from the obstacle. There are also described problems of system design of IR proximity sensors. The last part of this work is development of control software for robot and its testing.

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13

Dürndorfer, Mario [Verfasser]. "Thermal Micro Sensors for Pressure Measurements in the High, Fine and Rough Vacuum Ranges / Mario Dürndorfer." München : Verlag Dr. Hut, 2017. http://d-nb.info/1140977679/34.

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14

Gallo, Antonio. "Magnetic field sensors suitable for high temperature and vacuum operations and for remote handling in harsh environment." Doctoral thesis, Università degli studi di Padova, 2011. http://hdl.handle.net/11577/3427514.

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In the context of the alternative technologies for energy production, nuclear fusion is the most promising in order to reduce global dependence on fossil fuels such as oil and coal. Fusion research aims at developing a new energy source in the medium term and it should be engineered in the second half of this century, coming alongside the current technologies. Research on tokamak such as JET and ITER (DEMO in the future), based on the plasma confinement through the use of magnetic fields, is at present the most promising and should provide important results in the coming two decades. In this

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15

Kousourakis, Asimenia, and asimeniak@hotmail com. "Mechanical Properties and Damage Tolerance of Aerospace Composite Materials Containing CVM Sensors." RMIT University. Aerospace, Mechanical and Manufacturing Engineering, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20090506.095922.

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The PhD thesis evaluates the mechanical properties and damage tolerance of aerospace carbon/epoxy laminates containing long, narrow interlaminar galleries. The term 'galleries' refers to thin and long holes in a laminate used for the installation of small measuring devices, such as structural health monitoring (SHM) sensors. The galleries considered in this study are similar to those used in a novel SHM system known as 'Comparative Vacuum Monitoring (CVM)'. CVM was developed by the Australian company - Structural Monitoring Systems (SMS) - for damage detection in aircraft structures. CVM is a

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16

Uppalapati, Balaadithya. "Design and Analysis of Wafer-Level Vacuum-Encapsulated Disk Resonator Gyroscope Using a Commercial MEMS Process." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1510764485530995.

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17

Scatolini-Silva, Aline Mary [UNESP]. "Características físicas e químicas, sensoriais e microbiológicas de ovos armazenados em diferentes condições de embalagens sob temperatura ambiente." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/104922.

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Made available in DSpace on 2014-06-11T19:33:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-10-08Bitstream added on 2014-06-13T20:25:10Z : No. of bitstreams: 1 scatolinisilva_am_dr_jabo.pdf: 881399 bytes, checksum: 4e52d65ad35261e1f882cde1bda7c43b (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Foram realizados 3 experimentos com o objetivo de avaliar as características físicas e químicas, sensoriais e microbiológicas de ovos de casca branca e vermelha, higienizados ou não, e armazena

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18

Ford, Tara K. "Interaction of non-meat ingredients on sensory characteristics and chemical characteristics of pork loin chops during vacuum-packaged refrigerated storage." Texas A&M University, 2004. http://hdl.handle.net/1969.1/2687.

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Fresh, boneless, vacuum-packaged pork loins were obtained from a commercial pork processor and used in a five-part study to examine the effects of sodium chloride (0, .125, .375, .75, 1.50%), sodium phosphates (0, .1, .2, .3 and .4%), sodium lactate (0, 1, 2, 3 and 4%), potassium lactate (0, 1, 2, 3 and 4%) and sodium diacetate (0, .05, .10, .15 and .20%) on the color, sensory characteristics, package purge, water holding capacity, and pH of pork chops stored in vacuum-packaging for 0, 7, 14, 21 and 28 days. The first experiment examined the effects of sodium chloride and sodium phosphates (Br

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19

Guntupalli, Bhargav. "Nanomaterial-Based Electrochemical and Colorimetric Sensors for On-Site Detection of Small-Molecule Targets." FIU Digital Commons, 2017. http://digitalcommons.fiu.edu/etd/3488.

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An ideal biosensor is a compact and in-expensive device that is able to readily and rapidly detects different types of analytes with high sensitivity and specificity. The affectability of a biosensing methodology is subject to the limit of nanomaterials to transduce the target binding process to an improved perceptible signal, while the selectivity is accomplished by considering the binding and specificity of certain moieties to their targets. Keeping these requirements in mind we have chosen nanomaterials such as carbon nanotubes (CNTs) and gold nanoparticles (AuNPs) that has catalytic proper

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20

Scatolini-Silva, Aline Mary. "Características físicas e químicas, sensoriais e microbiológicas de ovos armazenados em diferentes condições de embalagens sob temperatura ambiente /." Jaboticabal : [s.n.], 2010. http://hdl.handle.net/11449/104922.

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Resumo: Foram realizados 3 experimentos com o objetivo de avaliar as características físicas e químicas, sensoriais e microbiológicas de ovos de casca branca e vermelha, higienizados ou não, e armazenados em diferentes condições de embalagens sob temperatura ambiente. 1.800 ovos de casca branca e 1.800 de casca vermelha foram embalados em três condições de embalagens (filme PVC, vácuo parcial e vácuo parcial com sachês sequestrantes de O2) e armazenados durante quatro períodos (7, 14, 21 e 28 dias). Exceto para as análises microbiológicas de quantificação de bolores e leveduras na casca dos ov

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21

Hofman, Jiří. "Testovací metody pro hodnocení radiačních efektů v přesných analogových a signálově smíšených obvodech pro aplikace v kosmické elektronice." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-401588.

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The traditional radiation testing of space electronics has been used for more than fifty years to support the radiation hardness assurance. Its typical goal is to ensure reliable operation of the spacecraft in the harsh environment of space. This PhD research looks into the radiation testing from a different perspective; the goal is to develop radiation testing methods that are focused not only on the reliability of the components but also on a continuous radiation-induced degradation of their performance. Such data are crucial for the understanding of the impact of radiation on the measuremen

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22

Firmino, Marcel Eduardo. "Construção de um sistema experimental para desaceleração de átomos." Universidade de São Paulo, 1991. http://www.teses.usp.br/teses/disponiveis/54/54132/tde-19032009-103705/.

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Neste trabalho apresentamos a construção e teste de um sistema experimental que nos permite produzir um fluxo intenso de átomos lentos. Discutimos o desenho e construção do solenóide que compensa o efeito Doppler que surge durante o processo de desaceleração, as câmaras de vácuo, o forno que gera o feixe atômico e o sistema ótico utilizado. Estudamos a técnica de desaceleração de átomos pelo ajuste Zeeman. Uma nova técnica de observação que consiste no acompanhamento da fluorescência do feixe ao longo do caminho de desaceleração é usada, o que nos permite uma observação direta do processo.<br>

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23

Müller, Jan. "Kondenzační technika a odvody spalin." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226844.

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This thesis is developed as a proposal for heating for a primary school and kindergarten in the region of Brno-countryside. For the insulated building, a combination of heating and air-conditioning is proposed. The concept is designed so that the air-conditioning preheats the exterior air and the heating system warms the incoming air to a comfortable temperature. For the required thermal performance, sources of heat (for gas and pellets) and a layout solution for the boiler room is designed. Drainage of combustion products is proposed for both solutions. The project solution is per the extent

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24

(10691970), Andrew Strongrich. "MEMS Wireless Sensor Networks for Spacecraft and Vacuum Technology." Thesis, 2021.

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<div>Wireless sensor networks are highly integrated across numerous industries from industrial</div><div>manufacturing to personal health monitoring. They provide several key benefits over</div><div>traditional wired systems including positioning flexibility, modularity, interconnectivity, and</div><div>robust data routing schemes. However, their adoption into certain sectors such as vacuum</div><div>and aerospace has been slow due to tight regulation, data security concerns, and device</div><div>reliability.</div><div>Lyophilization is a desiccation technique used to stabilize sensitive food

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25

Jian, Jia-xian, and 簡嘉賢. "Fabrication and Measurement of CMOS MEMS-Based Thermoelectric Vacuum Sensor." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/48574613951290320930.

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碩士<br>國立高雄應用科技大學<br>光電與通訊工程研究所<br>102<br>This paper presents the measurement and the fabrication of thermocouple vacuum sensors fabricated by a low cost CMOS process and MEMS technology. The thermocouple vacuum sensors have two types of suspended structures with different solid thermal conductance. The vacuum sensor with shorter supporting leads and larger solid conductance was named TP401 and the other one was TP402. Each suspended structure was formed by using <100> silicon anisotropic etching process after the CMOS process and has a polysilicon heater and an aluminum/polysilicon thermocoupl

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26

Dhruva, Shirhatti Vijay. "Development of Graphene Based Sensors for Human Physiological Monitoring and Vacuum Measurement." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5412.

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Nanomaterials have emerged as a remarkable class of materials in recent years owing to their excellent electrical, chemical, and physical properties. The first two-dimensional (2D) material to be discovered, graphene, has been the torchbearer in this regard with its superlative properties and a strong impact on numerous technologies. Sensor technology is one such space where nanomaterials have brought an impressive facelift. A new genre of sensors was imperative in the biomedical field where the existing brittle and rigid wafer-based electronics have their limitations. The present talk describ

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27

Lin, Kuan-Yu, and 林冠宇. "Fabrication of a Vacuum Packaging Capacitive Sensor for Micro-Ring Gyroscope." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/17195874904100597460.

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碩士<br>國立臺灣大學<br>應用力學研究所<br>99<br>In this research, a micro-ring vibratory gyroscope with grid-like masses was fabricated on a (111) single-crystal silicon wafer by MEMS technology. The base and the electrode sensing layer of the gyroscope were fabricated with Corning Pyrex #7740 glasses. The gyroscope can be used to measure any object’s rotational information through differential motions between grid-like masses and the electrode sensing layer. The frequency-offset problem was solved by using (111) silicon to fabricate the gyroscope. However, due to the high density of atomic arrangement in

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28

Lin, Che-Yu, and 林哲宇. "Development of clamped-clamped beam type piezoelectric sensor for vacuum pressure measurement." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/45619720375140636940.

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碩士<br>國立中興大學<br>機械工程學系所<br>100<br>In this thesis, a clamped-clamped beam type piezoelectric vacuum pressure sensor was developed. The piezoelectric beam fixed at both ends consists of a PZT layer perfectly bonded to the copper substrate. The dimensions of the PZT layers and copper substrate are both 20mm × 5mm × 200μm. Two pairs of electrodes cover the surfaces of the PZT at the bottom and top layers near both ends. Input voltage was applied at one pair of electrodes to vibrate piezoelectric beam and output voltage was measured at the other pair of electrodes. 　　Experimental results showed tha

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29

Liu, Guo-Yan, and 劉國晏. "The Tin-Lead alloy gas sensor array nanowire manufacturing with die-casting in high vacuum." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/m7ua8d.

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碩士<br>國立臺北科技大學<br>機電整合研究所<br>100<br>SnO2 is a very common materials used in gas sensor applications, caused by the change of resistance in a reducing atmosphere with the oxygen of the oxide surface adsorption reaction. Has been successfully applied to detect or identify a variety of toxic gases and combustion gases, such as CO, NO2, H2S, C2H6O2, CH4, etc. In this study, the use of vacuum die-casting will hypoeutectic, eutectic and hypereutectic molten tin-lead alloy molten metal cast into the nano template of anodic aluminum oxide(AAO), after curing of the liquid metal, the available array of

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30

Labello, Jesse M. "Characterization of the Temperature Dependence of Optical Components in a Cryo-Vacuum Chamber used for Space Sensor Testing." 2007. http://trace.tennessee.edu/utk_gradthes/162.

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The space sensor cryo-vacuum chambers at Arnold Air Force Base are world class sensor characterization and calibration facilities. The chambers provide a simulated deep space background and accurate infrared projections. Several large optical systems are used within the chambers to accomplish this. Calibration of the chambers requires the use of a database of the measured optical properties of these components to simulate the output. However, as the information in the database is room temperature information and the chambers run near 20K, some discrepancies exist between the actual output and

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31

Cheng, Chun-Wen, and 鄭鈞文. "Development and implementations of wafer-level process platform with various vacuum conditions for micro sensors integration." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/f75m74.

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Liu, Kuan-Chih, and 劉冠志. "The Application of Fiber Optic Sensors for Monitoring Resin Flow Frout in Vacuum Assisted Resin Transfer Molding (VARTM) Process." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/99502062622467237128.

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碩士<br>臺灣大學<br>工程科學及海洋工程學研究所<br>98<br>The optic fiber is the commonly used in communication, after special processing it can be made a sensing part. At present, fiber optic sensors are applied generally in civil engineering and aeronautics, astronautics engineering for monitoring. The fiber grating sensor unified many merits, for example, the volume is small, the diameter thin and mass is light, not electromagnetic wave disturbance, High transmission, Anti-corrosive, thermostable, easy to embedded in the structure and establish quasi-distributional multiplex monitor network, It’s suitable in th

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Lynch, Nancy Marie. "Flavor, aroma and color influences on consumer acceptance and flavor profile analysis of polyvinyl chloride and vacuum packaged ground beef." 1985. http://hdl.handle.net/2097/27486.

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