Auto testing system for electronic transformer

Abstract

The invention disclose an automatic test system of an electronic transformer, which comprises a machine cabinet, a high-low voltage switching box, a programmable high-voltage tester, a computer, a displayer, a programmable alternating current power supply, a keyboard, an indicator light, a loading plate and a relay that are sequentially connected from down to up and arranged in the machine cabinet, the high-low voltage switching box is installed with a position sensor; the automatic test system of the electronic transformer obtains test data by using the computer for controlling a dada acquisition card, calculates the test data by using the computer, and then obtains the result for judging the good and bad of the tested product; the computer has DAQ and DIO serial ports. The software design of the computer adopts an NI LabVIEW software development platform, and adopts NI data acquisition card for acquiring data. The method acquires the test data by using the computer for controlling the data acquisition card and then calculates the test data by the computer so as to obtain the result for judging the good and the bad of the tested product, controls a data acquisition channel by the I / O card and a drive circuit and automatically switches product load, thus being capable of testing a plurality of products simultaneously and greatly improving test efficiency.

Description

technical field [0001] The invention relates to a test system for electronic products. The test system obtains test data through a computer-controlled data acquisition card, and then calculates the test data by the computer to obtain a result to determine whether the product under test is good or bad. Specifically, it refers to the automatic test of electronic transformers. system. Background technique [0002] Transformers are used in almost all electronic products because their functions are very important: it can provide various voltage levels to ensure the normal operation of the system; provide electrical isolation for parts of the system that operate at different potentials; provide high impedance to alternating current , but provides low impedance to DC; maintains or modifies waveform and frequency response at different potentials. Impedance is also one of the important concepts, that is, one of the characteristics of electronics. It is a device that also needs to us...

AI Technical Summary

Problems solved by technology

[0003] However, when the traditional transformer is tested during its production process, or when it is already a finished product, its various performances are mostly completed through manual instrumentation testing operations, and various performances are due to testing instruments, instruments, etc. The difference needs to be tested separately. There are many steps and a fine division of labor. Not only is the speed slow and the efficiency is low, but there will also be large errors in the test results.

In addition, the current production and processing of transformers or ballasts generally adopt the assembly line operation method. When performing transformer performance tests, different staff members are also required to conduct corresponding performance tests, so the demand for manpower It is also relatively large, which invisibly increases the cost

In short, there are many deficiencies in the current manual mechanical performance test of transformers or ballasts, not only the work efficiency is low, but the test results have errors

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