A new-type non-contact FBG vibration detecting sensor for rotating machinery

Gang Xu; Yutang Dai; Xiaodong Niu; Qiuming Nan

doi:10.1117/12.966820

7 November 2012 A new-type non-contact FBG vibration detecting sensor for rotating machinery

Gang Xu, Yutang Dai, Xiaodong Niu, Qiuming Nan

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.

Citation Download Citation

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

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available