Composite material optical fiber array capable of automatically identifying structural damage on line
一种光纤阵列、复合材料的技术，应用在束光导纤维、光学、光导等方向，能够解决装备受损、人员和装备危害、无法及时发现结构损伤程度等问题，达到避免受到损失、运行稳定可靠、操作简单方便的效果
Inactive Publication Date: 2020-02-28
QINGDAO TECHNOLOGICAL UNIVERSITY
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Problems solved by technology
Working in a complex environment, the equipment may be damaged at any time, and the damage degree of the structure cannot be found in time, which will bring great harm to personnel and equipment
Method used
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[0042]It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0043] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof;
[0044] As described in the background technology section, in order to maintain the equipment and ensure the norma...
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The invention discloses a composite material optical fiber array capable of automatically identifying structural damage on line. The composite material optical fiber array is composed of a plurality of uniformly distributed optical fibers in horizontal and vertical (or inclined) directions, a composite material optical fiber prepreg is prepared and is cured and adhered to a detection position, anddamage identification is performed; and two sets of same photoelectric circuits are arranged, and each set of photoelectric circuit comprises a light source, an optical switch A, an optical fiber, anoptical switch B, a photoelectric sensor and a computer. The light source emits visible light to the optical switch A, and the light is continuously deflected and reflected by a torsion micro-mirrorin the optical switch A and irradiates each optical fiber in the composite material optical fiber prepreg layer, if the material is normal and the optical fibers are not damaged, visible light passesthrough the optical fibers, irradiates the optical switch B and is continuously deflected and reflected by the torsion micromirror in the optical switch B, the light irradiates the photoelectric sensor, and the sensor outputs an electric signal to the computer; and if the material is damaged, the optical fiber is damaged, the other corresponding optical fiber at the intersection point is also damaged and no electric signal is output, and the computer can give a fracture position coordinate at the intersection point of the two optical fiber arrays.
Description
technical field [0001] The application belongs to the field of non-destructive on-line damage detection of structural materials, capable of automatic detection and identification of online damage location and wound size, and specifically relates to a composite material optical fiber array for automatic online identification of structural damage. Background technique [0002] With the development of science and technology, great breakthroughs have been made in my country's large aircraft, manned spacecraft, deep-sea probes and other equipment. The external working environment of these high-tech equipment is relatively harsh, and it usually bears very complicated external forces and is easily damaged. Successful completion of the task requires an array of fiber optics that automatically identifies material damage online. [0003] At present, in order to maintain the equipment and ensure the normal operation of the equipment, logistics personnel need to conduct non-destructive...
Claims
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IPC IPC(8): G01N21/95G02B6/04
CPCG01N21/95G02B6/04G01D5/35374G02B26/0841G02B6/08G01D5/35341G02B6/3518G02B6/3598
Inventor 梁森闫云鹏王光和杨功先
Owner QINGDAO TECHNOLOGICAL UNIVERSITY