Device and method for testing strain position of object by using external strain
A testing device and testing method technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problem of no real-time monitoring and calculation methods, and achieve the effect of real-time monitoring and calculation and solving cumulative errors.
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[0063] The present invention will be further described below in conjunction with drawings and embodiments.
[0064] Such as figure 1 As shown, the device includes a light source driving circuit 1, a light source 2, a 2×2 optical coupler 3, a photodetector 4, a sensing fiber 7 and a strain applying device 8; the light source driving circuit 1 is connected to the light source 2, and the light output of the light source 2 The end is connected to one end on one side of the 2×2 optical coupler 3, the other end on one side of the 2×2 optical coupler 3 is connected to the photodetector 4, and the other end on the other side of the 2×2 optical coupler 3 is connected to the sensing fiber 7, the other end of the other side of the 2×2 optical coupler 3 and the other end of the sensing fiber 7 are used as empty ports to connect to the pigtail. The strain applying device 8 is a strip-shaped object that can be made of any material and is attached to a certain circumferential position in th...
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