Distributed high-precision FBG (fiber bragg grating) displacement sensor with function of temperature compensation, and method
A technology of displacement sensor and optical fiber grating, which is applied in the direction of instruments, optical devices, measuring devices, etc., can solve the problems of cumbersome packaging process of displacement sensor, uneven strain distribution, low sensitivity, etc., and achieve good market economic benefits and high measurement accuracy , the effect of easy productization
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[0026] The present invention will be further described below in conjunction with specific examples and accompanying drawings.
[0027] The invention provides a distributed high-precision optical fiber grating displacement sensor with temperature compensation, such as Figure 1 to Figure 6 As shown, it includes a base 12 and an optical fiber with a grating in the base 12, the optical fiber includes a first optical fiber 1 and a second optical fiber 8, the first optical fiber 1 is provided with a first grating 3, and the second optical fiber 8 is provided with a first optical fiber 8. Two gratings 10, the two ends of the first grating 3 are respectively fixed to the base 12 through the first fixed point 2 and the second fixed point 5, and the two ends of the second grating 10 are respectively passed through the third fixed point 9 and the fourth fixed point The fixing point 11 is fixed to the base 12, and the first to fourth fixing points 2, 5, 9, 11 make the first optical fiber...
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