Iron tower strain monitoring rod piece
A technology of strain monitoring and rods, which is applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of secondary disasters and emergency recovery difficulties, and achieve the effect of convenient installation
Pending Publication Date: 2021-10-19
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology
Once the iron tower is damaged under the action of the disaster load, it will not only cause huge economic losses, but also cause secondary disasters such as fire, which will also cause great difficulties for emergency recovery.
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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will combine the appended Figure 1 to Figure 4 , clearly and completely describe the technical solutions in the embodiments of the present invention, obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0027] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implementation manners obtained b...
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The invention discloses an iron tower strain monitoring rod member, in the iron tower strain monitoring rod member, at least two hollow rod bodies are fixedly connected with a to-be-measured iron tower rod piece, the axis direction of the hollow rod bodies is parallel to the axis direction of the to-be-measured iron tower rod piece, and the hollow rod bodies are detachably connected. The plurality of fiber bragg gratings are fixed in the hollow rod body through a T-shaped fixing piece in the hollow rod body, have different central wavelengths and are uniformly distributed along the axis direction of the hollow rod body, when the to-be-measured iron tower rod piece is subjected to tension or pressure, the fiber bragg gratings are stretched or contracted, tail fiber is connected with the plurality of fiber bragg gratings, the tail fiber is connected with a demodulator to couple a light source and a detector, and the detector measures the wavelength drift of the fiber bragg grating to generate the strain distribution of the to-be-measured iron tower rod piece.
Description
technical field [0001] The invention relates to the technical field of electric power transmission monitoring, in particular to a steel tower strain monitoring rod. Background technique [0002] The iron tower is an important part of the power transmission system, a carrier of high-load power transmission, and an important lifeline project. Various natural disasters are likely to cause the iron tower to be crushed, pulled, twisted, and the tower collapsed. Once the iron tower is damaged under the action of the disaster load, it will not only cause huge economic losses, but also cause secondary disasters such as fire, which will also cause great difficulties for emergency recovery. Therefore, it is of great significance to monitor the health status of the iron tower. [0003] The stress of the key rods of the iron tower can reflect the operation status of the iron tower in real time. Therefore, the use of advanced sensing technology to monitor the key members of the iron t...
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IPC IPC(8): G01B11/16
CPCG01B11/165
Inventor 赵文彬李宾皑薛敏朱瑞袁斌霞初凤红
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER