Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Microwave sensor"”.
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Measuring ice accretion with a microwave radiometer.
… before power loss occurs is needed. A passive microwave sensor has been developed to address this problem. The ice accretion sensor has been developed to address this problem. The ice accretion sensor is a microwave radiometer which receives the natural thermal emissions of an environment. Ice …
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Non-invasive electromagnetic wave sensor for flow measurement and biphase application
… and oil & gas industry. The multiphase flow sensor proposed in this research utilizes the resonant frequencies that occur inside a cavity and the differences in the permittivity of the measures phases. By measuring this response over the range of discrete frequencies the sample can be …
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The feasibility of using EM waves in determining the moisture content and factors effecting measurements in building fabrics
… addresses the use of an electromagnetic wave sensor to determine moisture content within building fabrics. Building materials that require a special mixing ratio such as concrete, mortar and membrane layers will be subject to significant effects when exposed to unpredictable weather changes …
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A new snowfall detection algorithm for high latitude regions based on a combination of active and passive sensors
… over ice and snow, using satellite-based passive microwave spectrometers, is currently an unsolved problem. The challenge results from the large variability of microwave emissivity spectra for snow and ice surfaces, which can mimic, to some degree, the spectral characteristics of snowfall. This …
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The Development of an Independent Frequency Modulated Continuous Wave Radar for Perimeter Security
… has provided several diverse industries with a microwave sensor that can be utilized reliably for many different applications. The research specified in this thesis focuses primarily on the perimeter security industry with the application of detecting human targets through the use of FMCW radar. …
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FOULING AND ITS MITIGATION ON HEAT EXCHANGER SURFACES BY ADDITIVES AND CATALYTIC MATERIALS
… Investigation was conducted with a 2.5 GHz microwave cavity resonator. The principle of electric dipole moment theories were used to analyse the sample solution that occurs as a function of calcium ion content. The sample was centrally positioned in the electric field of the TM010 mode of a …
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NOVEL SENSOR PLATFORMS BASED ON FABRY-PEROT RESONATORS FOR APPLICATIONS IN ENVIRONMENTAL GEOPHYSICS
<p>"Fabry-Perot resonator sensors have been widely used for various physical and chemical measurements owing to their unique advantages over traditional sensors such as high measurement resolution, mechanically robust, and distributed sensing capabilities. This dissertation focuses on the …