Fig. 1. Structural diagram

Fig. 2. FBG and mass block vibration model

Fig. 3. The influence of major parameters on the resonant frequency and sensitivity

Fig. 4. COMSOL simulation diagram

Fig. 5. The experimental schematic diagram and hardware layout

Fig. 6. Accelerometer output response

Fig. 7. The wavelength response to acceleration at different frequencies

Fig. 8. Test curve of the amplitude-frequency response of accelerometer

Fig. 9. The anti-interference characteristic of the accelerometer

Fig. 10. Fourier spectrum of the impact response in the time domain