• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2022, Vol. 58 ›› Issue (8): 27-53.doi: 10.3901/JME.2022.08.027

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Recent Advances and Tendency of Optical Fiber Sensing Technology for Equipment Manufacturing and Operating States Monitoring in Extreme Environments

LI Tianliang, GUO Jinxiu, WU Dongjian, TAN Yuegang, ZHOU Zude   

  1. School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070
  • Received:2021-01-06 Revised:2021-12-05 Online:2022-04-20 Published:2022-06-13

Abstract: The safe operation of large-scale manufacturing equipment is related to the development of the national economy and national defense construction. The use of advanced sensing technology is of great significance to the performance evaluation of manufacturing equipment and the monitoring of its operating conditions under extreme environments such as ultra-high/low temperature, ultra-high pressure, intense radiation, strong magnetic field, etc. Optical fiber sensor has become an important tool for equipment manufacturing and operating condition monitoring in extreme environments due to its intrinsic advantages such as small size, resistance to high temperature, corrosion and electromagnetic interference, explosion-proof, passive sensing, and easy realization of multi-point distributed measurement. Equipment manufacturing and operating condition monitoring technology based on the extreme parameter optical fiber sensing under extreme environments has been investigated. And the design, fabrication, calibration, error compensation and application of extreme parameter optical fiber sensors have been summarized. The design principle of the extreme parameter optical fiber sensor's energy converter and the modulation mechanism of the optical fiber signal are introduced. The manufacturing method, packaging process, calibration and error compensation methods of the optical fiber sensor are elaborated and analyzed. The research achievements on the extreme parameter optical fiber sensor for equipment manufacturing and operating condition monitoring have been summarized. The tendency of the extreme parameter optical fiber sensing technology is discussed and outlooked.

Key words: extreme environment, extreme parameter, optical fiber sensing, equipment manufacturing, operating status monitoring

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