Resistance measuring device for conductive adhesive tape in shielding cover

Abstract

The invention discloses a resistance measuring device for a conductive adhesive tape in a shielding cover, and belongs to the field of conductive adhesive tape testing. A supporting assembly comprises a bottom plate, a vertical shaft and a transverse shaft. A counterweight assembly comprises a connecting shaft, a counterweight block and an insulating seat; the connecting shaft comprises a first shaft rod and a second shaft rod, the first shaft rod is movably inserted into a strip-shaped hole, one end of the first shaft rod is detachably connected with one end of the counterweight block, the other end of the first shaft rod is coaxially connected with one end of the second shaft rod, and the other end of the second shaft rod is connected with the insulating seat. A testing assembly comprises an ohmic resistance meter and two electrodes, the two electrodes are movably arranged on the insulating seat, and one end, facing the bottom plate, of each electrode protrudes out of the insulating seat. The resistance measuring device provided by the invention not only can realize detection of products of the same type and avoid the problem of test failure caused by large fluctuation of a test result, but also can realize detection of products of different types.

Description

technical field [0001] The invention belongs to the field of testing conductive rubber strips, and more specifically relates to a resistance measuring device for conductive rubber strips in shielding covers. Background technique [0002] The shielding cover is a tool used to shield electronic signals. Its function is to shield the influence of external electromagnetic waves on the internal circuit and the external radiation of electromagnetic waves generated inside. [0003] The shielding cover includes a casting and a conductive rubber strip. After the casting is processed, the conductive rubber strip needs to be coated on the surface of the casting, and the resistance test of the conductive rubber strip is performed after completion. In the related art, the resistance test of the conductive rubber strip is directly tested with a multimeter, that is, the probe of the multimeter is used to press the conductive rubber strip for testing. [0004] For the same type of conducti...

AI Technical Summary

Problems solved by technology

However, in the process of the above-mentioned resistance test, the pressure cannot be controlled to be the same, and the distance and length of the test cannot be consistent every time. The test results obtained fluctuate greatly (poor reliability), which eventually leads to test failure.

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