Strain gauge sorter and sorting method

Abstract

The invention discloses a strain gauge sorter which includes a micro-processor module and a power supply module, and a serial port communication module which is connected to the micro-processor module and is for connecting a digital multimeter. An output end of the micro-processor module is connected to a LED gear indicating circuit and an electronic switch module. The micro-processor module and the electronic switch module are both in connection to an output end of the power supply module. The electronic switch module and the digital multimeter are connected. The invention also discloses a strain gauge sorting method. According to the invention, the strain gauge sorter has the characteristics of scientific design, easy implementation, and low cost, high sorting precision. The strain gauge sorter prevent errors that may appear in manual sorting, and effectively save labor and material resources. The strain gauge sorter herein has the characteristics of strong practicality, excellent use effects, and easy promotion.

Description

technical field [0001] The invention belongs to the technical field of strain gauge sorting, and in particular relates to a strain gauge sorting instrument and a sorting method. Background technique [0002] The BF350-3FG strain gauge sorting instrument in the prior art works with a high-performance digital multimeter. Its function is to conduct a comprehensive performance test on the BF350-3FG strain gauge products before leaving the factory to evaluate whether they meet specific technical standards and specifications. And grade the products that meet the requirements. figure 1 It is the schematic diagram of the BF350-3FG strain gauge, figure 2 For its product map, the specific testing requirements are as follows: [0003] Specific measurement requirements: [0004] ①Measure the resistance at both ends of 1 and 3. [0005] ②Measure the zero voltage at terminals 2 and 4. [0006] Add (no more than) 1V DC voltage to terminals 1 and 3 (terminal 1 is power supply +, termi...

AI Technical Summary

Problems solved by technology

[0016] The first is that the strain gauge needs to be clamped twice. Since the size of the strain gauge product is generally on the order of 3mm×5mm, the size of the four electrodes is small and the spacing is smaller, it is difficult to clamp accurately manually, and the two clamping takes a long time; The zero voltage of the two-step measurement must be manually read and judged by binning. During the rapid reading and binning judgment, the workers on the assembly line have a high brain tension, and work for a long time is mentally labor-intensive, which is prone to judgment or binning errors.

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