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Fiber grating two-dimensional displacement monitor and method to monitor displacement

A two-dimensional displacement, fiber grating technology, used in instruments, measuring devices, optical devices, etc., can solve the problems of not being able to monitor in time, affecting the monitoring time and period, and high cost in manpower and material resources, and achieving anti-electromagnetic interference capabilities. High, reduced manpower and material costs, and the effect of a wide measurement range

Inactive Publication Date: 2013-08-21
XIAN UNIV OF SCI & TECH
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Problems solved by technology

However, the above-mentioned traditional personnel detection methods are easily affected by many uncertain factors, such as errors caused by human factors, weather reasons or other reasons, which make it impossible to monitor in time, which affects the monitoring time and cycle, and the cost of manpower and material resources is too high.

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  • Fiber grating two-dimensional displacement monitor and method to monitor displacement
  • Fiber grating two-dimensional displacement monitor and method to monitor displacement

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Embodiment Construction

[0017] Below, refer to the attached Figure 1~2 The fiber grating two-dimensional displacement monitor and the displacement monitoring method of the present invention will be described.

[0018] exist figure 1 Among them, the fiber grating two-dimensional displacement monitor has a housing, and also includes: a first assembly and a second assembly, the first assembly is arranged outside the housing 10, the first assembly is mainly composed of the first steel pipe 1, the second The steel pipe 7, the first steel pipe connector 2, the second steel pipe connector 5, the fixed pulley 3, and the spring 8 are composed. The second assembly is arranged inside the above-mentioned housing. The second assembly is mainly composed of a cantilever beam 11, a grating optical fiber and The base 9 is composed of one end of the first steel pipe provided with a first steel pipe connector 1, one end of the second steel pipe 7 provided with a second steel pipe connector 5, and the first steel pipe...

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Abstract

A fiber grating two-dimensional displacement monitor comprises a shell body and further comprises a first assembly and a second assembly. The first assembly is arranged outside the shell body, the second assembly is arranged inside the shell body. The second assembly is provided with cantilever beams where grating optical fibers are adhered. The fiber grating two-dimensional displacement monitor is buried in soil, by means of displacement changes of the first assembly, transformation of fiber grating of the second assembly is detected, and conditions of landslide, dam body deformation and roadbed settlement are measured. Therefore, the grating two-dimensional displacement monitor can carry out multi-point real-time monitoring in a long distance, can effectively reduce labor and material cost with remote real-time monitoring, can effectively avoid influences of weather or other human factors on monitoring, and intensifies reliability of measurement data.

Description

technical field [0001] The invention relates to a two-dimensional displacement measuring device, in particular to an optical fiber grating two-dimensional displacement monitor, which belongs to the technical field of optical fiber displacement sensing. Background technique [0002] Landslides, dam deformation, and roadbed subsidence are very large natural disasters, which have a great impact on national production and life. The traditional detection of the above natural disasters uses the method of regular inspection by personnel. However, the above-mentioned traditional personnel detection methods are easily affected by many uncertain factors, such as errors caused by human factors, weather reasons or other reasons, which make it impossible to monitor in time, which affects the monitoring time and cycle, and the cost of manpower and material resources is too high. . Contents of the invention [0003] In order to solve the above problems, the present invention designs a f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02
Inventor 肖江梁军周虎陆阳陈超丁威
Owner XIAN UNIV OF SCI & TECH
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