Device for pressing resistance strain sheets and magnetic patches and method for adhering resistance strain sheets

A technology of resistance strain gauge and pressing device, applied in electromagnetic measuring device, measuring device, electric/magnetic solid deformation measurement and other directions, can solve the problems of human body frostbite, time-consuming and laborious, difficult to guarantee the stress condition, etc., and achieves easy operation. , Simple structure, light weight effect

Inactive Publication Date: 2010-01-06
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process mainly relies on manual work, which is time-consuming and labor-intensive, and the stress situation is not easy to guarantee, resulting in unstable pasting quality
When the patch is pasted in the low temperature environment in the wild, it will also cause frostbite to the human body
At present, there is no convenient patch and labor-saving device

Method used

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  • Device for pressing resistance strain sheets and magnetic patches and method for adhering resistance strain sheets
  • Device for pressing resistance strain sheets and magnetic patches and method for adhering resistance strain sheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] see below figure 1 , the permanent magnet 1 is a cylindrical permanent magnet, the spring 8 is built in the permanent magnet 1, the two ends are sealed with the top sheet 3 of the ladder, and one end is pressed with the end cover 2, the first top sheet 3, the second top sheet Sheet 9 and end cover 2 have coaxial through holes, like this, by a long screw rod 5, just can permanent magnet 1, spring 8, two top sheets 3 with coaxial through holes and end cover 2 are connected together, The end of the screw goes through the through hole of the end cover and is locked with the nut 7. The end cover 2 has the same outer diameter as the permanent magnet 1. Within the inner diameter of the permanent magnet on the end cover 2, three screw holes are evenly arranged, so that the three When the screw 6 is screwed down or turned up, the spring 8 can be controlle...

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Abstract

The invention provides a device for pressing resistance strain sheets and magnetic patches, comprising a permanent magnet, an end cover, a top sheet, a foam cushion, a screw rod matched with a nut and a spring. The device for pressing resistance strain sheets and magnetic patches utilizes the permanent magnet to be absorbed on a metal structure surface of detected equipment by depending on magnetic force, thereby compressing the spring to enable the foam cushion to generate pressing force on strain sheets to fix the strain sheets. When the device is in use, the foam cushion is firstly aligned with the strain sheets which are coated with glue and adhered on the metal structure surface, the permanent magnet is pressed to be absorbed on the detected equipment, pressing force generated by the spring forces the strain sheets to be closely contacted with the metal surface of the detected equipment, and the size of the pressure can be adjusted by rotating screws; when the 502 glue is dried, and the strain sheets are combined with the metal surface of the detected equipment into an integer, the device for pressing resistance strain sheets and magnetic patches is taken down. The device for pressing resistance strain sheets and magnetic patches has the advantages of small volume, light weight, good sheet adhering effect and simple and convenient maintenance.

Description

technical field [0001] The invention belongs to the technical field of engineering testing, and in particular relates to a magnetic patch pressing device for resistance strain gauges and a method for pasting resistance strain gauges. Background technique [0002] When stress testing the metal structure of the equipment with a stress tester, it is necessary to paste resistance strain gauges on the surface of the metal structure of the equipment to collect strain data at the measuring point. Strain gauges are generally pasted on the polished and smooth surface of the equipment. The traditional method is to apply 502 glue on the surface of the strain gauge, put the strain gauge in a straight position, cover it with a plastic film, and then gently roll and press the plastic film with your fingers to drive out the air bubbles in the strain gauge. , and then press the strain gauge firmly until the 502 glue between the strain gauge and the metal structure of the equipment is air-dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/16G01L1/22
Inventor 缪谦白雪松马一民
Owner CHINA ELECTRIC POWER RES INST
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