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Dissertations / Theses on the topic 'Temperature sensors'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Hout, S. R. in't. "High-temperature silicon sensors." Delft, the Netherlands : Delft University Press, 1996. http://books.google.com/books?id=dApTAAAAMAAJ.

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2

BORGNA, MIRKO. "Room temperature ammonia sensors." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2532493.

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In this thesis, different materials were used to make ceramic sensors to ammonia, obtained by screen printing, working at room temperature. The main objective is to apply these devices to food chemistry, in order to evaluate quantitatively the alteration products of certain food categories, for example meat, which tends to generate biogenic amines, such as cadaverine, putrescine, histamine and others. Since the ammonia is the simplest amino group, it was decided to characterize ceramic sensors in ammonia atmosphere. The ceramic materials used for the realization of sensors are ZnO, Fe2O3, WO3

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3

Hashmi, А., and А. Kalashnikov. "Comparison of the responsiveness of ultrasonic oscillating temperature sensors (UOTSes) and conventional sensors to temperature inflection." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/55751.

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Ultrasonic oscillating temperature sensors (UOTSes), in distinction to conventional temperature sensors, feature almost negligible settling time. This property can be useful for detecting malfunctions, failures and misuses of heat exchangers. However, most exchangers handle substantial thermal masses, which obscure the detection of any temperature changes. We compared the responsiveness of conventional DS18B20 sensors and an UOTS to the change in the temperature gradient of over 3.5 kg of water using a posteriori records. Temperature inflection points were estimated by extending the

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4

Narayanaswamy, Anand Subramanian. "A Non-Contact Sensor Interface for High-Temperature, MEMS Capacitive Sensors." Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1275675071.

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5

Yerochin, S. Yu, A. N. Demenskiy, V. A. Krasnov, and S. V. Shutov. "Diode temperature sensors with tunable sensitivity." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45971.

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We investigated the possibility of using of AlGaInP heterostructures with p-n junction as diode temperature sensors having quasi-linear dependence of the forward voltage drop on the ambient temperature at the fixed direct current. Thus we measured the current-voltage characteristics of the p-n structures in the temperature range 293-550 K. Using the data obtained we calculated the differential current thermal sensitivity of the structures mentioned. A semilogarithmic plot of the thermal sensitivity vs. forward current dependence is presented in the figure.

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6

Selli, Raman Kumar. "Fibre optic temperature sensors using fluorescent phenomena." Thesis, City University London, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236641.

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7

Banim, Robert Seamus. "Improved temperature sensors for the process industry." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245572.

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8

Birley, Joseph Leonard Mark. "An investigation of temperature controlled humidity sensors." Thesis, De Montfort University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393232.

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9

Cederlund, Jacob. "Radiated Susceptibility Measurements on Analogue Temperature Sensors." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279959.

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The need for electromagnetic compatibility is growing steadily as the usage of electronics in our daily lives is increasing more than ever. A common issue encountered in electromagnetic compatibility testing is analogue sensors that fail when exposed to electromagnetic fields. Testing how well electronics do when exposed to electromagnetic fields is called susceptibility testing, and standards for how to do these tests have been developed to ensure that the results of the tests can be reproduced. In this thesis work, analogue temperature sensors have been shielded using a few common techniques

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10

Rashidi, Mohammadi Abdolreza. "MEMS pressure, temperature and conductivity sensors for high temperature and harsh environments." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/33783.

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Kraft pulp digesters have been used to convert wood chips into pulp for manufacturing a wide variety of paper products. Inside a kraft digester, chemical reactions remove lignin from their wood matrix in a caustic environment (pH~13.5, 170°C, 2MPa). Data on actual internal operating conditions in a kraft digester is needed to optimize kraft digester operation and obtain maximum production quality. Currently, this information is limited to selected static locations on the periphery of the digester. The objective of this thesis is to develop miniature temperature, pressure, and liquid conductivi

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11

Spirig, John Vincent. "A new generation of high temperature oxygen sensors." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1188570727.

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12

Zhao, Weizhong. "Optical fibre high temperature sensors and their applications." Thesis, City University London, 2011. http://openaccess.city.ac.uk/1190/.

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13

Häggmark, Ilian. "Fiber Bragg Gratings in Temperature and Strain Sensors." Thesis, KTH, Tillämpad fysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-145741.

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ROYAL INSTITUE OF TECHNOLOGY Abstract Laser Physics Group Department of Applied Physics SA104X Degree Project in Engineering Physics, First Cycle Fiber Bragg Gratings in Temperature and Strain Sensors by Ilian Haggmark Supervisor: Michael Fokine A Fiber Bragg Grating (FBG) is a periodic variation of the refractive index in an optic ber. It works as a wavelength selective lter and is used in several dierent applications such as telecommunication and sensor technology. Fiber sensors are based on a simple principle; the ber is aected by strain, temperature etc. due to which the selection of wav

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14

Jones, Alexander R. "The application of temperature sensors into fabric substrates." Thesis, Kansas State University, 2011. http://hdl.handle.net/2097/11991.

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Master of Science<br>Department of Apparel, Textiles, and Interior Design<br>Diana Sindicich<br>With continuing advancements in the area of electronics, there are more ways in which they are utilized in order to improve the lives of humans. These advancements have to led to the incorporation of electronic components into fabric structures, creating electronic textiles (e-textiles). As it has become possible to place small electrical components within clothing without the performance of the electronics being hampered, research has been conducted in the use of e-textiles in measuring aspects of

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15

Hadeler, Oliver. "Distributed feedback fibre laser strain and temperature sensors." Thesis, University of Southampton, 2002. https://eprints.soton.ac.uk/46100/.

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This thesis presents the development of two new types of polarimetric distributed feedback (DFB) fibre laser sensors for simultaneous strain and temperature measurements. These fibre Bragg grating (FBG) based sensors offer strain and temperature measurement accuracies of ±0.3 - ±15 με and ±0.04 - ±0.2°C which are suitable for many applications. The main advantage of these DFB fibre laser sensors over other FBG based sensors is the simplicity of their interrogation system. The first type of sensor operates stably in a single longitudinal mode which splits into two orthogonally polarised modes.

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16

Xu, Juncheng. "High Temperature High Bandwidth Fiber Optic Pressure Sensors." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/25988.

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Pressure measurements are required in various industrial applications, including extremely harsh environments such as turbine engines, power plants and material-processing systems. Conventional sensors are often difficult to apply due to the high temperatures, highly corrosive agents or electromagnetic interference (EMI) noise that may be present in those environments. Fiber optic pressure sensors have been developed for years and proved themselves successfully in such harsh environments. Especially, diaphragm based fiber optic pressure sensors have been shown to possess advantages of high sen

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17

Jin, Sheng. "Silicon carbide pressure sensors for high temperature applications." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1296096110.

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18

Smith, Stephen Roy Walter. "Remote optical fibre temperature and groundwater sensing." Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266224.

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19

Twedt, Jason Christopher. "Fiber-Optics Based Pressure and Temperature Sensors for Harsh Environments." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/42782.

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Monitoring accurate temperature and pressure profiles in harsh environments is currently in high demand in aerospace gas turbine engines and nuclear reactor simulators. Having the ability to measure both quantities continuously over a region, without thermal coupling, using a sensor with a small size (envelope) is also highly desirable. Currently available MEMS (microelectromechanical systems) provide effective small scale pressure and temperature measurement devices, however, they have only been shown to be effective up to 600C and lack the ability to perform distributed measurements unless c

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20

Almutairi, Fajhan Hilal Hamad. "Fibre optic distributed temperature sensors applications and temperature modelling in intelligent wells environments." Thesis, Heriot-Watt University, 2007. http://hdl.handle.net/10399/63.

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21

Wang, Zhiyong. "Self-Calibrated Interferometric/Intensity Based Fiber Optic Temperature Sensors." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/9690.

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To fulfill the objective of providing robust and reliable fiber optic temperature sensors capable of operating in harsh environments, a novel type of fiber optic sensor system titled self-calibrated interferometric/intensity-based (SCIIB) fiber optic temperature sensor system is presented in this thesis including the detailed research work on the principle analysis, design, modeling, implementation and performance evaluation of the system. The SCIIB fiber optic temperature sensor system shows us an innovative fiber optic sensor system compared with traditional fiber optic sensors. In addition

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22

Firebaugh, Samara L. "Investigation of materials for use in high-temperature, thin-film heaters and temperature sensors." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43402.

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23

Kennedy, Jermaine L. "Investigations of fiber optic temperature sensors based on Yb:Y3Al5O12." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001566.

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24

Wang, Jun. "Packing design of MEMS pressure, temperature and other sensors." Mémoire, École de technologie supérieure, 2008. http://espace.etsmtl.ca/623/1/WANG_Jun.pdf.

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Dans certaines recherches précédentes, la fabrication des capteurs de pression se basait sur les puces MEMS à base de SiC (Silicon Carbide). Cependant, des chercheurs de l'Université Concordia ont démontré récemment que SiCN (Silicon Carbide Nitride) avait un avantage plus important par rapport au Si (Silicon) ou SiC à haute température. Il serait donc un matériel potentiel dans un environnement hostile. Dans ce mémoire, un bref historique sur les capteurs MEMS à haute température sera introduit. Certaines questions dont le choix du matériel, la fabrication, l'empaquetage, et l'applicati

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25

Agbor, N. E. "Gas sensors using organic thin films at room temperature." Thesis, Durham University, 1993. http://etheses.dur.ac.uk/5694/.

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The thesis describes work on the thin film deposition, characterization and gas sensing of three groups of organic materials: polyaniline, lutetium bisphthalocyanine and metallotetraphenylporphyrins. These materials were deposited by evaporation, spinning and using the Langmmr-Blodgetttechnique. Film characterization by dc conductivity, scanning electronmicroscopy, surface plasmon resonance, ultraviolet/visible and infrared spectroscopy is described. Gas-induced changes in devices coated with the thinorganic films were monitored at the molecxilar level using Fourier transform infrared spectros

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26

Page, Julian. "Factors affecting low temperature performance of zirconia gas sensors." Thesis, Middlesex University, 2001. http://eprints.mdx.ac.uk/8007/.

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A reduction in the operation temperature of zirconia ceramic gas sensors is highly desirable for a number of practical reasons. This work seeks to investigate the factors that prevent a reduction in operation temperature and propose methods by which these may be resolved. A novel approach to sensor fabrication has been developed and employed with the advantage of reduced device complexity that should lead to subsequent cost and reliability benefits. Leakage rates in these devices have been shown to be small and electrochemical in origin. Leakage was greater than reported for gold seal devices,

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27

Mohammadazari, Pejman. "Application of Capacitive Temperature Sensors for Food Processing Applications." Thesis, Southern Illinois University at Edwardsville, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13421017.

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<p> This thesis presents the design, analysis and optimization of a MEMS capacitive temperature sensor. The capacitive sensors are utilized in a wide range of applications from industrial and automotive applications to biomedical and food processing. A capacitive sensor has two conductive electrodes and its working principle depends on the change in the position of the electrodes or their effective area, which ultimately results in a change in the capacitance of the device. This thesis describes the modeling and the simulation results of a capacitive temperature sensor with a set of bimorph be

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28

Vysniauskas, Aurimas. "Molecular rotors as sensors of microscopic viscosity and temperature." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/55240.

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Microscale viscosity is a key parameter that defines the physical makeup of a system, controlling viscoelastic properties of microscopic objects. Additionally, microviscosity within a living cell controls the rate of mass transport through a cell and is hence intimately linked to the activity of a cell. Therefore, measuring viscosity on a microscale represents an important challenge within both physical and biological sciences. So far, one of the most informative and convenient ways for doing this is to use fluorescent 'molecular rotors', which are the viscosity-sensitive fluorophores. The cha

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29

Loskutova, Ksenia, and Daniel Neuman. "3D-printed temperature sensors based on Fiber Bragg Gratings." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-195841.

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Fiber Bragg Gratings is a type of optical sensor used to measure temperature in many different fields. They have many advantages in relation to standard electric thermometers. The optical fiber and grating is cheap, these optical fiber sensor systems are expensive mainly due to the spectrum analyzer, so it is preferable to minimize the cost while keeping the accuracy as high as possible. By increasing the thermal response of the fiber it is possible to reduce the overall cost of the sensor system. The thermal response can be increased if a material with greater thermal expansion than the fiber

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30

Sving, Andreas. "Investigation of High-Temperature Sensors for Tube Monitoring Applications." Thesis, Uppsala universitet, Solcellsteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-434360.

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This report covers the investigation of the next generation of sensors to be used in the sensor based tube system known as SentusysTM. One essential feature of the next generation of sensors is high-temperature endurance. The sensors (strain gauges and thermocouples) have been produced by means of thermal spraying techniques, short-pulse laser ablation and laser cladding. It has been found that the sensors seem to work in general, however, much research and development remain.

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31

Zhu, Yizheng. "Miniature Fiber-Optic Sensors for High-Temperature Harsh Environments." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/27762.

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Measurement of physical parameters in harsh environments (high pressure, high temperature, highly corrosive, high electromagnetic interference) is often desired in a variety of areas, such as aerospace, automobile, energy, military systems, and industrial processes. Pressure and temperature are among the most important of these parameters. A typical example is pressure monitoring in jet engine compressors to help detect and control undesirable air flow instabilities, namely rotating stall and surge. However, the temperatures inside a compressor could reach beyond 600°C for today's large engine

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32

Hurley, Paul Raymond. "Application of Optical Fiber Sensors for Quenching Temperature Measurement." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99035.

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The critical heat flux (CHF) point for a reactor core system is one of the most important factors to discuss in regards to reactor safety. If this point is reached, standard coolant systems are not enough to handle the temperature increase in the cladding, and the likelihood of meltdown greatly increases. While the nucleate boiling and film boiling regimes have been well-investigated, the transition boiling regime between the point of departure from nucleate boiling (DNB) and the minimum film boiling temperature (Tmin) remains difficult to study. This is due to both the complexity of the pheno

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33

Trontz, Adam J. "Metal-Ceramic Coaxial Cable Sensors for Distributed Temperature Monitoring." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1522165065943505.

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34

Yoo, Seung-jin. "Micromachined wavelength selective microbolometer sensors operating at room temperature /." Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p3004406.

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35

MOISELLO, ELISABETTA. "Integrated Interface Circuits for MEMS Contact-less Temperature Sensors." Doctoral thesis, Università degli studi di Pavia, 2020. http://hdl.handle.net/11571/1370177.

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Thermal sensors, exploiting the relation between the thermal radiation emitted by an object and its temperature, as expressed by the Stefan-Boltzmann law, allow realizing contact-less temperature measurements, required in a wide range of applications, ranging from fever measurements to presence detection for security and climate control systems. With the advent of smart homes and Internet of Things (IoT) and the wide spreading of mobile and wearable devices, the need for low-cost low-power thermal sensors has arisen, therefore moving the focus of the research away from standard bolometers and

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36

Barnes, Adam. "Sapphire fiber in optical sensors." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-09052009-041053/.

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37

Abeysinghe, Don Chandana. "Novel MEMS Pressure and Temperature Sensors Fabricated on Optical Fibers." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin997987327.

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38

Wu, Zhaohui. "Modeling and characterization of high-temperature silicon-based thermal sensors." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B31057652.

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39

Frood, Andrew J. M. "Thick-film Piezoelectric resonant sensors : MEMS and High Temperature Solutions." Thesis, University of Southampton, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505870.

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40

Chong, N. "Room-temperature GaAs and polysilicon thermal sensors for infrared radiation." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597637.

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GaAs was introduced as a thermoelectric material in a micromachined thermal detector. GaAs/Au thermocouples were fabricated on air-bridges with lengths ranging from 40 to 650 <I>μ</I>m by anisotropic etching to undercut the GaAs substrate with photoresist patterns delineated by optical lithography. The devices have been characterized with a 10.6 <I>μ</I>m CO<SUB>2</SUB> laser. The responsivity and time constant for various lengths were determined in both air and vacuum conditions. The time constants ranging from 50 <I>μ</I>s up to 2.2 ms were among the fastest for micromachined thermal detecto

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41

Wu, Zhaohui, and 吳朝暉. "Modeling and characterization of high-temperature silicon-based thermal sensors." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B31057652.

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42

Bezombes, Frédéric. "Fibre Bragg grating temperature sensors for high-speed machining applications." Thesis, Liverpool John Moores University, 2004. http://researchonline.ljmu.ac.uk/5630/.

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In high-speed grinding research, it is required to measure temperature within the workpiece. Present techniques are thermocouple based, and often suffer from excessive electrical noise on the signal. This thesis presents a number of novel and existing optical sensing devices that overcome this limitation and also, in some cases, offer greater performance. The optical sensors are fibre Bragg grating based and the optical techniques used to interrogate that sensor include DWDM, WDM, athermic grating, tuneable grating and coupler. Optical fibre devices are simpler to place in situ prior to the ma

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43

Beech, Alison. "An investigation of novel low-temperature carbon monoxide gas sensors." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/33096.

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Carbon monoxide (CO) is a colourless and highly toxic gas. The detection of CO is a key requirement for safety and control in combustion processes. A number of sensors are currently available but all have drawbacks with most if not all having questions raised about their effective detection of CO over other gases such as hydrogen and methane. The power consumption of some methods of gas sensing is high as the active material must be heated to 400.600°C in order to function. The aim of this project was to attempt to eliminate this high power requirement and to study the design, fabrication and

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44

Chalyy, D., and I. Zhidenko. "Fiber-optical temperature sensors for operation in radiation-hazard conditions." Thesis, XII Міжнародна науково-практична конференція молодих вчених, курсантів та студентів «Проблеми та перспективи розвитку системи безпеки життєдіяльності». – Л., 2017. – С.29, 2017. http://hdl.handle.net/123456789/3978.

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45

Tonks, Michael James. "Modeling and Testing of Fast Response, Fiber-Optic Temperature Sensors." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/26075.

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The objective of this work was to design, analyze and test a fast response fiber-optic temperature probe and sensor. The sensor is intended for measuring rapid temperature changes such as produced by a blast wave formed by a detonation. This work was performed in coordination with Luna Innovations Incorporated, and the design is based on extensions of an existing fiber-optic temperature sensor developed by Luna. The sensor consists of a glass fiber with an optical wafer attached to the tip. A basic description of the principles behind the fiber-optic temperature sensor and an accompanying

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46

Zhang, Yibing. "Novel Optical Sensors for High Temperature Measurement in Harsh Environments." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/28392.

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Accurate measurement of temperature is essential for the safe and efficient operation and control of a vast range of industrial processes. Many of these processes involve harsh environments, such as high temperature, high pressure, chemical corrosion, toxicity, strong electromagnetic interference, and high-energy radiation exposure. These extreme physical conditions often prevent conventional temperature sensors from being used or make them difficult to use. Novel sensor systems should not only provide accurate and reliable temperature measurements, but also survive the harsh environments thro

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47

Crenshaw, Brent R. "PHOTOLUMINESCENT POLYMER MATERIALS WITH BUILT-IN DEFORMATION AND TEMPERATURE SENSORS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=case1169825895.

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48

Patil, Amita C. "Silicon Carbide JFET Integrated Circuit Technology for High-Temperature Sensors." Cleveland, Ohio : Case Western Reserve University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1238786695.

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49

ZIEGLER, DANIELE. "Innovative ozone sensors for environmental monitoring working at low temperature." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2750551.

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50

KRIK, Soufiane. "Low-operating temperature chemiresistive gas sensors: Fabrication and DFT calculations." Doctoral thesis, Università degli studi di Ferrara, 2021. http://hdl.handle.net/11392/2488099.

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Despite advantages highlighted by Metal OXides (MOX) based gas sensors, these devices still present drawbacks in their performances (e.g. selectivity, stability and high operating temperature), so further investigations are necessary. Researchers tried to address these problems in several ways, which includes new synthesis methods for innovative materials based on MOX, such as solid solutions, addition of catalysts and doping of MOX by using external atoms or oxygen vacancies. Concerning this last issue, literature presents a lack of studies on how the arrangement and number of oxygen vacancie

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