پديد آورنده :
غفوريان، مريم
عنوان :
حسگر بي سيم دماي خطوط انتقال قدرت، مبتني بر تشديد كاواك RF همراه با طراحي و شبيه سازي اينتروگيتور
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده برق و كامپيوتر
صفحه شمار :
ده،83ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
ابوالقاسم زيدآبادي نژاد
توصيفگر ها :
حسگر پسيو , اندازه گيري دماي خط.ط انتقال قدرت
تاريخ نمايه سازي :
9/7/92
استاد داور :
سعيد صدري، رسول دهقاني
دانشكده :
مهندسي برق و كامپيوتر
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Wireless overhead line temperature sensor based on an RF cavity resonator with design and simulation of the interrogator By Maryam Ghafourian m ghafourian@ec iut ac ir Supervisor Abolghasem Zeidaabadi Nezhad For the degree of Master of Science Department of Electrical and Computer Engineering Date 31 12 2012 Language Persian Abstract The economic importance of transferring maximum power via existing networks necessitates dynamic power control to keep transmission line temperatures within safe limits Excessive conductor operating temperature leads to increased sag of the transmission line and may reduce conductor s expected life In this thesis a passive wireless sensor based on a resonant radio frequency RF cavity is presented which can be used to measure the overhead transmission line temperature This temperature sensor doesn t need any power supply and can be easily clamped to the power line with an antenna attached Changing temperature causes change of cavity dimensions and a shift in resonant frequency Then the resonant frequency of the cavity can be interrogated wirelessly Such a system has the advantage of requiring no permanent physical connection between the sensor and the data acquisition system In this thesis also a theoretical basis of the sensor design and simulation of the interrogator optimizing coupling to the cavity sensor calibration of the sensor implementation and testing the temperature sensing system sensor comparison with thermal models and so on is presented The design presented here is a coaxial cavity resonator that exhibits electromagnetic resonance for wavelengths two times its cavity length and operates at a frequency of approximately 2 4 GHz and can be interrogated from distance of greater than 4 5 meters Experimental results have shown high linearity low hysteresis and a temperature resolution of better than 0 07 C on this sensor Keywords Passive sensor RF resonant cavity Power lines temperature measurement Wireless sensors PDF created with pdfFactory trial version www pdffactory com
استاد راهنما :
ابوالقاسم زيدآبادي نژاد
استاد داور :
سعيد صدري، رسول دهقاني
