Proposal of metal bellows-based fiber Bragg grating accelerometer |
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Authors: | Jinghua Zhang Xueguang Qiao Manli Hu Zhongyao Feng Hong Gao Yang Yang Rui Zhou |
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Institution: | Department of Physics, Northwest University of China, Xi'an 710069, China |
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Abstract: | A metal bellows-based fiber Bragg grating(FBG) accelerometer is proposed and experimentally demonstrated. The optical fiber(containing the FBG) is pre-tensioned,and the two ends of the optical fiber are fixed directly from the shell to the inertial mass. In this design,the FBG is uniformly tensioned to obtain a constant strain distribution over it. By employing this configuration,the FBG always has a sharp reflection characteristic with no broadening in its reflection spectrum during wavelength shifting. Dy... |
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