Fault diagnosing methods of fiber optic current sensor: a review

Chen Liu; Ding Wang; Chenggang Li; Kuo Su; Dexin Li; Dafei Yu; Liqing Wang; Lei Si; Junjie Jin

doi:10.1117/12.2579476

5 November 2020 Fault diagnosing methods of fiber optic current sensor: a review

Chen Liu, Ding Wang, Chenggang Li, Kuo Su, Dexin Li, Dafei Yu, Liqing Wang, Lei Si, Junjie Jin

Proceedings Volume 11569, AOPC 2020: Optical Information and Network; 1156909 (2020) https://doi.org/10.1117/12.2579476
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

The engineering application number of fiber optic current sensor (FOCS) is decreasing year by year since 2012 in China due to its reliability problems. However, the researchers and related enterprises have also made some constructive attempts on the study of fault diagnosis of FOCS. In this paper, the application status and the common fault modes of FOCS are analyzed. Three ways to diagnosing the soft and hard fault of FOCS are reviewed, including based on analytical model, on signal processing and on knowledge. Finally, the research direction of FOCS fault diagnosing is prospected. It is concluded that the diversified and intelligent fault diagnosis method based on knowledge has more advantages compared with the other two methods. In addition, the development of FOCS for integrated optical path is of great help in improving its reliability and will be a research hotspot in the future.

Citation Download Citation

Chen Liu, Ding Wang, Chenggang Li, Kuo Su, Dexin Li, Dafei Yu, Liqing Wang, Lei Si, and Junjie Jin "Fault diagnosing methods of fiber optic current sensor: a review", Proc. SPIE 11569, AOPC 2020: Optical Information and Network, 1156909 (5 November 2020); https://doi.org/10.1117/12.2579476

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