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High-sensitivity fiber Bragg grating pressure sensor using metal bellows

机译:采用金属波纹管的高灵敏度光纤布拉格光栅压力传感器

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摘要

A novel structure of an optical fiber pressure sensor based on a fiber Bragg grating (FBG) and metal bellows is presented. Due to the novel structure, the sensitivity is improved to 48 pm/kPa. The relationship between Bragg wavelength and the applied pressure is derived. Experimental data indicates that there is a good linear relation between the Bragg wavelength shift and the applied pressure. This sensor can be utilized in low-pressure measurement.

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