Research on a FFT based FBG mechanical vibration monitoring system

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.