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Highly stabilized fiber Bragg grating accelerometer based on cross-type diaphragm
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DOI：10.1364/OE.523300.png)
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Abstract
En 中文
A fiber Bragg grating (FBG) accelerometer based on cross-type diaphragm was proposed and designed, in which the cross-beam acts as a spring element. To balance the sensitivity and stability, the accelerometer structure was optimized. The experimental results show that the designed device has a resonant frequency of 556 Hz with a considerable wide frequency bandwidth of up to 200 Hz, which is consistent with the simulation. The sensitivity of the device is 12.35 pm/g@100 Hz with a linear correlation coefficient of 0.99936. The proposed FBG accelerometer has simple structure and strong anti-interference capability with a maximal cross-error less than 3.26%, which can be used for mechanical structural health monitoring.
Keywords:
FBG ACCELEROMETER
VIBRATION SENSOR
DESIGN
Journal
IF:
3.3
Papers:
6.1W
Citations:
14.3W
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