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Surface strain dynamic fiber grating detection device

A fiber grating and detection device technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems that the blade detection method cannot be completed in time and accurately, and achieve the effect of reasonable structure and convenient use

Pending Publication Date: 2021-04-02
XINJIANG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention provides a surface strain dynamic optical fiber grating detection device, which overcomes the deficiencies of the prior art and can effectively solve the problem that the existing traditional blade detection method cannot be completed in time and accurately

Method used

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  • Surface strain dynamic fiber grating detection device
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Embodiment Construction

[0015] The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.

[0016] In the present invention, for the convenience of description, the description of the relative positional relationship of each component is based on the description attached to the description. figure 1 For example, the positional relationship of front, rear, top, bottom, left, right, etc. is determined according to the layout direction of the drawings in the description.

[0017] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:

[0018] as attached figure 1 , 2 As shown, the surface strain dynamic fiber grating detection device includes a light source, an isolator, a trunk circuit circulator, a filter grating, an optical splitter, a surface stress detection unit and a host computer. The light sourc...

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Abstract

The invention relates to the technical field of surface strain detection, and particularly relates to a surface strain dynamic fiber grating detection device. The device comprises a light source, an isolator, a primary circuit circulator, a filter grating, an optical divider, surface stress detection units and an upper computer, wherein the light source is connected with the isolator, the isolatoris connected with the primary circuit circulator, the primary circuit circulator is connected with the filter grating and the optical divider, and the optical divider is connected with the at least two surface stress detection units. The device is reasonable and compact in structure and convenient to use, the isolator is arranged and is a one-way channel device, the light source can be protected,and light waves are prevented from being reflected back into the light source; by arranging the filter grating, broadband light emitted by the light source is filtered and reflected back to narrow-band light with a specific central wavelength range; through the arrangement of the detection grating, detection when the surface of the blade deforms and generates tiny strain is achieved, and the characteristics of being rapid, accurate and sensitive are achieved.

Description

technical field [0001] The invention relates to the technical field of surface strain detection technology, and relates to a surface strain dynamic optical fiber grating detection device. Background technique [0002] A wind turbine is a large-scale device that converts wind energy into electrical energy, integrating traditional machinery and modern electronics and other technologies. The vigorous development of wind power alleviates the pressure brought by the energy crisis and environmental pollution, and promotes the sustainable development of the earth and environmental protection. As a device for developing and utilizing renewable energy, related technologies from its structural design to structural health monitoring have been valued by more and more countries and regions. [0003] Wind power equipment is mostly built in places with rich wind resources such as seaside, field, and mountain tops. The rich wind resources also correspond to the complex and harsh natural en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16
CPCG01B11/165
Inventor 孙文磊王炳楷王宏伟徐甜甜万云发张志虎
Owner XINJIANG UNIVERSITY
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