An automatic testing system and method
An automatic test system and measurement equipment technology, which is applied in the field of testing and power module testing, can solve the problems of long test cycle, poor test consistency, and easy introduction of human errors, etc., to improve measurement accuracy, reduce human errors, and increase test efficiency Effect
Active Publication Date: 2020-12-22
NO 47 INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology
Manual testing has problems such as long test cycle, error-prone, poor test consistency, etc.
Human judgment of test results is subjective and repetitive work. As the number of judgments increases, it is particularly easy to introduce human error
[0004] Power modules have the characteristics of many types and large output, and the error probability of manual testing and human judgment is greatly increased
Method used
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[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0053] An automatic test system, including a control box and excitation equipment connected thereto, measuring equipment, temperature test equipment, test fixtures, and output loads;
[0054] An incentive device, used to provide an incentive signal for the item under test;
[0055] Measuring equipment for measuring the output parameters of the item under test;
[0056] Temperature test equipment, used to generate the temperature environment required for testing;
[0057] The test fixture is used to fix the item under test and lead out all the signal lines required for the test;
[0058] Output load, used to provide output current for the item under test;
[0059]The control box is used to control the excitation device to provide an excitation signal for the object under test and read the return information of the excitation device, control ...
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The invention discloses an automatic test system and method for realizing the test and judgment of a tested object. The automatic test system comprises a clamp, an excitation device, a measuring device, a temperature testing device and a control box, wherein the clamp is used for fixing the tested object, the excitation device is used for providing an excitation signal for the tested object, the measuring device is used for measuring an output parameter of the tested object, the temperature testing device is used for providing an environment needed in testing the tested object, the control boxcan perform a cascade operation according to the number of channels of the tested object, and the tested object may be placed in the temperature testing device at all times to perform the tests of all test items in all environments. The invention also discloses the automatic testing method, the operation can be simplified, the efficiency is improved, the fault tolerance rate is improved, the introduction of a human error is avoided, and the test of a tested object of a new variety can be completed by simple setting.
Description
technical field [0001] The invention relates to an automatic test system and method, which belongs to the field of testing, in particular to the field of power module testing. Background technique [0002] Many products currently on the market need to strictly guard every checkpoint in the production process to ensure product quality, and correspondingly, a lot of testing work has been generated. [0003] Many tests in the production process are manual tests, and the test results are judged by humans. Manual testing has problems such as long test cycle, error-prone, and poor test consistency. Human judgment of test results is subjective and repetitive work. As the number of judgments increases, it is particularly easy to introduce human error. [0004] Power modules have the characteristics of various types and large output, and the error probability of manual testing and human judgment is greatly increased. Contents of the invention [0005] The present invention propo...
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IPC IPC(8): G01R31/40
CPCG01R31/40
Inventor 张雷肖薇王笑怡尹冀波
Owner NO 47 INST OF CHINA ELECTRONICS TECH GRP