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Interface debonding detection test device based on FBG optical fiber sensing

A technology of optical fiber sensing and testing equipment, applied in the direction of measuring equipment, mechanical equipment, instruments, etc., can solve the problems of non-quantitative monitoring, difficult operation in the application field, and inability to detect interface force and development trend, etc., to achieve The effect of simple operation, accurate and reliable measurement results, strong safety and controllability

Active Publication Date: 2020-12-04
北京天骥空间科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] At present, although CT scanning can obtain an intuitive picture of whether the interface is debonded or not, it cannot detect the force and development trend of the interface
In addition, CT scanning can only qualitatively judge the debonding of the interface, but cannot quantitatively monitor it.
In roads, bridges, etc., the application of fiber gratings tends to be mature, but in the field of strain measurement of solid rocket debonding, the application field is still very new and the operation is very difficult

Method used

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  • Interface debonding detection test device based on FBG optical fiber sensing
  • Interface debonding detection test device based on FBG optical fiber sensing
  • Interface debonding detection test device based on FBG optical fiber sensing

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0025] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

[0026] refer to Figure ...

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Abstract

The invention discloses an interface debonding detection test device based on FBG optical fiber sensing. The device comprises a load loading system, a force application lever system, an interface force application system, an FBG optical fiber sensing and collecting system, and a base and auxiliary frame system. The load loading system is used for providing load force for the interface debonding detection test device; the force application lever system is used for amplifying load force provided by the load loading system and applying the load force to the interface force application system; andthe interface force application system is used for applying the load force transmitted by the force application lever system to an interface. By arranging the load loading system, the force application lever system, the interface force application system and the FBG optical fiber sensing and collecting system, the device has the advantages that interface bonding can be simulated, interface stresscan be conveniently, safely and adjustably achieved, basic conditions are provided for interface debonding detection, all-dimensional long-term measurement of interface strain can be achieved, the interface debonding accuracy is improved, and a measurement result is accurate and reliable.

Description

technical field [0001] The invention relates to the field of interface debonding principle detection, in particular to a method based on optical fiber sensing technology, which can manually place weights of the same weight on the load loading system in sequence to achieve the effect of applying force. The debonding principle test has been carried out and can be applied. A wide range of interface debonding detection test equipment. Background technique [0002] It has always been a difficult point in the aerospace field to use fiber optic sensors to detect the debonding of solid rockets, and to detect the strain change on the bonding interface based on the collected data to detect whether the interface is debonding. [0003] At present, although CT scanning can obtain an intuitive picture of whether the interface is debonded or not, it cannot detect the force and development trend of the interface. In addition, CT scanning can only qualitatively judge the debonding of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 安梅岩范丽卓清琪
Owner 北京天骥空间科技有限公司
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