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7 November 2012 A new-type non-contact FBG vibration detecting sensor for rotating machinery
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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421AE (2012) https://doi.org/10.1117/12.966820
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
Currently, the vibration measurement and monitoring of the rotating machines has become the primary means of fault diagnosis. This paper proposed to develop a magnetic coupling non-contact machinery vibration detection sensor based on fiber Bragg grating (FBG). The magnetic coupling technology and elastic diaphragm are adopted to achieve the vibration detection by changing the axial strain of optical fiber. Theoretical analysis and static experiment show that the function of output wavelength and the measured spacing is exponential decrease. Dynamic vibration measurement shows that the proposed FBG diaphragm accelerometer provides a wide frequency response range (0-90Hz), identifying it as a good candidate for machinery health monitoring.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gang Xu, Yutang Dai, Xiaodong Niu, and Qiuming Nan "A new-type non-contact FBG vibration detecting sensor for rotating machinery", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AE (7 November 2012); https://doi.org/10.1117/12.966820
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