Steel rail or bridge displacement monitoring device for fiber Bragg grating transformation ring
A fiber grating and displacement monitoring technology, which is applied in the field of rail displacement, rail or bridge displacement monitoring devices, can solve the problems of inability to realize automatic measurement, unstable sensor characteristics, and decreased sensor sensitivity, so as to achieve long-term maintenance of measurement accuracy and solve stability Problems, Effects of Simple Structure
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[0031] The structure and installation method of the rail displacement monitoring device of the optical fiber grating deformation ring of the present invention will be further described below in conjunction with the accompanying drawings.
[0032] Such as figure 1 , 2 As shown, the monitoring device is composed of a fixing clip assembly, a connecting assembly, a fiber grating annular displacement sensing assembly, a pull rod assembly and a sensor housing device. When monitoring rail displacement, the whole device is installed between two sleepers 24 .
[0033]The fixing clip assembly is fixed on both sides of the bottom of the rail 1 by the rail fixing clip 2 and the fixing clip fastening bolt 3, and it is required to be fastened without looseness to ensure the accuracy of displacement measurement. Steel plate 4 is fixed on steel rail clamp 2 outsides (i.e. rail outside) with steel plate fastening bolt 5 again, and the steel cable fixed frame 7 is fixed on steel plate 4 exter...
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