Moisture detector allowing test distance to be adjusted

Abstract

The invention discloses a moisture detector allowing the test distance to be adjusted. The moisture detector comprises a grinding module, wherein the grinding module comprises a broad grinding wheel and a narrow grinding wheel, wherein a bearing block of the broad grinding wheel is fixedly mounted on a slider; a push plate is fixed at the bottom of the slider and fixed with an adjusting screw horizontally arranged on the side surface of a casing; a thread hole in threaded connection with the adjusting screw is formed in the side surface of the casing, one end of the adjusting screw is fixed with the push plate, and the other end of the adjusting screw penetrates through the thread hole and extends out of the casing; a sliding chute used for mounting of the push plate is arranged in the casing and has the length larger than that of the push plate and the width according with that of the push plate, and the sliding direction of the slider is parallel to the connecting line of a circle center of the broad grinding wheel and a circle center of the narrow grinding wheel. According to the moisture detector allowing the test distance to be adjusted, the moisture value obtained by a moisture sensor is processed by a switch module and an operational amplifier module, noise signals in the sampling process can be reduced, and the moisture detection result accuracy is further improved.

Description

technical field [0001] The invention relates to a resistance moisture meter, in particular to a moisture detector with an adjustable test distance. Background technique [0002] In the resistive moisture meter, the detection module has a built-in rolling module, and the setting of the rolling module can more accurately detect the moisture content of the measured item. In the existing rolling module, the narrow rolling wheel and the wide rolling wheel are fixedly installed inside the shell in the rolling module. When the material enters the rolling module from the feed port, the rolling The module performs the operation of crushing materials. Usually, when testing the moisture content of materials, the diameter structure of each material is different. As a result, when the same moisture meter is used for testing, some materials have too large diameters. When rolling, it is easy to cause damage to the rolling wheel, resulting in cost. rise. Contents of the invention [00...

AI Technical Summary

Problems solved by technology

Usually, when testing the moisture content of materials, the diameter structure of each material is different. As a result, when the same moisture meter is used for testing, some materials have too large diameters. When rolling, it is easy to cause damage to the rolling wheel, resulting in cost. the rise of

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