Techniques in calibration of the value error of electronic universal testing machine

Electronic universal testing machineIt is widely used in the inspection of building materials and is popularized for its convenient operation. However, due to the quality of the product itself, long-term use or improper use, the accuracy and stability of the electronic universal testing machine will be reduced and the stability of the electronic universal testing machine will be changed, and it will even be unable to be used. Now, the author analyzes the calibration tips in the calibration error calibration of the electronic universal testing machine and writes it into this article for your reference.
Electronic universal testing machine (hereinafter referred to as the testing machine) is a major testing equipment currently used in material testing, and its display error is ±0.5% or ±1.0%. The verification items of the test machine mainly include appearance, performance, installation inspection and force value verification.
When the test machine display value exceeds the difference during verification, debugging can be completed by multi-point correction of the test machine display value and the corresponding standard force value. However, in actual calibration, some test machines must add correction coefficients before they can be adjusted. The following is a brief description of this calibration method.
When the displayed value error is negative and linear.
First, during calibration, you must record the actual error number of each calibration point, and then during calibration, the standard force value of each calibration point becomes the standard force value minus the actual error number, and then input it, and you can adjust it. For example: When the standard force value is 200kN, the error is -4.2kN. During calibration, when the display is 195.8kN, press the confirmation key and enter the value.
When the value error is positive and linear.
Using the same method above, the standard force value of each calibration point during calibration will become the standard force value plus the actual error number, and then input it, and you can adjust it.
When the display value exceeds the difference (positive error or negative error), it is not linear.
Then you need to use the above method to calibrate once, and then use the conventional method to calibrate once, and you can adjust it.

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