基于FFT的光纤光栅机械振动监测系统研究

doi:10.3976/j.issn.1002-4026.2012.04.012

J4 ›› 2012, Vol. 25 ›› Issue (4): 49-52.doi: 10.3976/j.issn.1002-4026.2012.04.012

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Research on a FFT based FBG mechanical vibration monitoring system

ZHAO Lin, MIN Li, LI Shu-Juan

Shandong Provincial Key Laboratory of Optical Fiber Sensing Technology, Laser Institute, Shandong Academy of Sciences, Jinan 250014, China

Received:2012-04-10 Online:2012-08-20 Published:2012-08-20

Abstract

Abstract:

We designed a fiber grating mechanical vibration monitoring system with fiber Bragg grating sensor. The system realized multiple parameter monitoring and remote transmission of vibration frequency, acceleration, velocity and displacement by fast demodulation of real time vibration signal and could provide complete data analysis and display. Experimental results show that the system can be effectively applied to turbine engine and coal mine vibration monitoring, and can provide software support for the fault diagnosis of a mechanical equipment.

Key words: fiber Bragg grating, vibration monitoring, FFT

CLC Number:

TN29

ZHAO Lin, MIN Li, LI Shu-Juan. Research on a FFT based FBG mechanical vibration monitoring system[J].J4, 2012, 25(4): 49-52.

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Research on a FFT based FBG mechanical vibration monitoring system

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