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, Xinglin Tong, Minli Zhao, Chengwei Deng, Qian Guo, Yan Mao, 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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