10 September 2015 Study on high temperature Fabry–Perot fiber acoustic sensor with temperature self-compensation
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Abstract
A Fabry–Perot (F-P) fiber acoustic sensor, which can work under high-temperature harsh environment with temperature self-compensation, is designed and prepared. A condenser was used to maintain the sensor to work in a stable temperature environment. Because of the special structure of the sensor and the function of the condenser, the cavity variation of the sensor caused by changes of external temperature from −10°C to 500°C would not exceed 8 nm. The experimental results show that the sensor has a good frequency response in a range of 1 to 5 kHz and the field experiment results show that it could be used for hydraulic decoking online monitoring by judging the acoustic frequency spectrum.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Pan Hu, Pan Hu, Xinglin Tong, Xinglin Tong, Minli Zhao, Minli Zhao, Chengwei Deng, Chengwei Deng, Qian Guo, Qian Guo, Yan Mao, Yan Mao, Kun Wang, Kun Wang, } "Study on high temperature Fabry–Perot fiber acoustic sensor with temperature self-compensation," Optical Engineering 54(9), 097104 (10 September 2015). https://doi.org/10.1117/1.OE.54.9.097104 . Submission:
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