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Proceedings Paper

A new-type non-contact FBG vibration detecting sensor for rotating machinery
Author(s): Gang Xu; Yutang Dai; Xiaodong Niu; Qiuming Nan
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Paper 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.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AE (7 November 2012); doi: 10.1117/12.966820
Show Author Affiliations
Gang Xu, Wuhan Univ. of Technology (China)
Yutang Dai, Wuhan Univ. of Technology (China)
Xiaodong Niu, Wuhan Univ. of Technology (China)
Qiuming Nan, Wuhan Univ. of Technology (China)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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