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
CN101619959AInactive Publication Date: 2010-01-06CHINA ELECTRIC POWER RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ELECTRIC POWER RES INST
Publication Date
2010-01-06
Estimated Expiration
Not applicable · inactive patent

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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.
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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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