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Optical Engineering

Study on high temperature Fabry–Perot fiber acoustic sensor with temperature self-compensation
Author(s): Pan Hu; Xinglin Tong; Minli Zhao; Chengwei Deng; Qian Guo; Yan Mao; Kun Wang
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Paper 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.

Paper Details

Date Published: 10 September 2015
PDF: 7 pages
Opt. Eng. 54(9) 097104 doi: 10.1117/1.OE.54.9.097104
Published in: Optical Engineering Volume 54, Issue 9
Show Author Affiliations
Pan Hu, Wuhan Univ. of Technology (China)
Xinglin Tong, Wuhan Univ. of Technology (China)
Minli Zhao, Wuhan University of Technology (China)
Chengwei Deng, Wuhan Univ. of Technology (China)
Qian Guo, Wuhan Univ. of Technology (China)
Yan Mao, Wuhan Univ. of Technology (China)
Kun Wang, Wuhan Univ. of Technology (China)

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