期刊
OPTICS AND LASERS IN ENGINEERING
卷 157, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2022.107116
关键词
Fiber-optic; Pressure monitoring; Intensity compensation; Harsh environments; Fabry-Perot sensor; Rapid-interrogation
类别
资金
- National Natural Science Foundation of China [62035006, 62075160, U2006216]
- open project of Key Laboratory of Opto-electronics Information Technology [2021KFKT005, 2021KFKT006]
- Ministry of Education (Tianjin University) [300072]
- Tianjin Research Innovation Project for Postgraduate Students [2021YJSB159]
The study presents a novel intensity-compensation method for wide-range pressure monitoring in high-temperature environments. Experimental results demonstrate that the proposed method significantly improves signal stability and achieves real-time pressure measurement at different temperatures.
Rapid-interrogation of MEMS Fabry-Perot (F-P) sensor is a promising method for real-time pressure measurement in high-temperature environments, but this approach is rather challenging because of the temperature-induced influence on signals. To solve this problem, we first present (to our best knowledge) a novel intensity-compensation interrogation method for wide-range pressure monitoring from 25 degrees C to 700 degrees C. In the proposed method, Optical signal passing through the beam splitter is employed as a reference, which is applied to compensate the temperature-induced intensity fluctuations of the signals without affecting the orthogonality. Experimental results verifies that the proposed compensation technique reduces the intensity fluctuations of the two orthogonal signals by 95.1% and 95.7%, respectively, which significantly improves the stability of signals. Additionally, results also demonstrate that the proposed method achieves the real-time pressure measurement of 0.1 5 MPa at 25 degrees C and 0.1 3 MPa from 200 degrees C to 700 degrees C, with interrogation rate up to 5 kHz. The proposed intensity-compensation interrogation method overcomes the obstacle of wide-range pressure monitoring in high-temperature based on MEMS F-P sensor, and opens the way for real-time pressure measurement in harsh environments.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据