Title :
Development of high-resolution temperature sensor employing fiber-coupled and optically powered quartz crystal
Author :
Xiaohong, Ni ; Yuxiu, Guo ; Yutian, Wang ; Jing, Yuan
Author_Institution :
Cangzhou Teachers´´ Coll. of Hebei, Cangzhou, China
Abstract :
A temperature measuring driving scheme with high resolution is proposed which is based on the optical fiber coupling closed-loop oscillatory quartz crystal. Using the optical feedback stabilized 5mW LD as illuminant, the photic driving distance is 50m. The power of designed micro-consumption temperature-sensitive sensor probe is less than 0.5mW. The design idea of this new sensor and the key technology of realizing photic driving are introduced in this paper. Experimental results show that the temperature sensor can resist high-voltage and electromagnetic interference, and in the range of 0°~+200°C, sensitivity can reach 1000Hz/°C.
Keywords :
closed loop systems; crystal oscillators; electromagnetic interference; fibre optic sensors; optical fibre couplers; probes; quartz; temperature sensors; electromagnetic interference; fiber-coupled powered quartz crystal; high-resolution temperature sensor; high-voltage interference; illuminant; microconsumption temperature-sensitive sensor probe design; optical feedback; optical fiber coupling closed-loop oscillatory quartz crystal; optically powered quartz crystal; photic driving distance; power 5 mW; size 50 m; temperature measuring driving scheme; Charge carrier processes; Light emitting diodes; Optical coupling; Optical sensors; Probes; Resonant frequency; Temperature sensors; fiber couplied and photic drive; optical feedback; quartz crystal; temperature sensor probe;
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-9792-8
DOI :
10.1109/CSQRWC.2011.6037118
