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High-Sensitivity Three-Axis FBG Accelerometer Based on Elliptical Spring
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DOI：10.1109/TIM.2022.3228277.png)
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Abstract
En 中文
propose an elliptical spring-based three-axis fiber Bragg grating (FBG) accelerometer fabricated by appropriately arranging and encapsulating three identical one-axis sensing structures in a cylindrical shell. The derived theoretical equations and the established simulation model of the sensing structure are in good agreement with the experimental results. Sensors on three axes operate in a frequency band of 10-70 Hz; the sensitivities of the proposed accelerometer in X-Z directions are 1197.82, 1157.78, and 1223.04 pm/g, respectively, showing high sensitivity, good consistency, directional response, and resistance to transverse interference.
Keywords:
Sensors
Accelerometers
Strain
Sensitivity
Optical fiber sensors
Optical fibers
Fiber gratings
Fiber Bragg grating (FBG)
finite-element simulation
high sensitivity
three-axis accelerometer
Journal
IF:
5.9
Papers:
1.9W
Citations:
5.8W