What are the calibration methods for tensile testing machines?

What are the calibration methods for tensile testing machines? The calibration of the tensile testing machine is the work that must be done before the tensile testing machine is used, in order to ensure the accuracy of the measurement
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The calibration methods of the tensile testing machine are divided into the following three types: 1.
Calibration of the testing speed of the tensile testing machine When calibrating the testing speed of the testing machine: 1.
Note down the starting position of the machine beam; 2.
Then select on the control panel Speed ​​value (use a standard straight steel ruler to measure the stroke of the cross arm); 3.
When starting the machine, the electronic stopwatch starts timing for 1 minute, and when the stopwatch reaches the time, press the machine stop button
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4.
According to the time of the stopwatch, record the stroke value of the cross arm at the rate per minute (mm/min), observe the difference between the stroke value of the cross arm and the straight steel ruler, and calculate the error value of the stroke of the cross arm, which should not exceed ±1%.
2.
Calibration of various force values ​​of the tensile testing machine Open the operation interface of the tensile testing machine, click the calibration program, we first take a standard weight and hang it lightly on the upper fixture connection seat, click to start the test, and then record the computer to display the force value, and calculate The difference between the weight and the standard weight should not exceed ±1%.
If there is a large error, there should be a problem with the sensor.
Try to reset the force value of the software and perform multiple tests
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 　　3.
Displacement calibration of the tensile testing machine This needs to reset the current displacement, and then open the calibration interface, the interface displays the moving distance, this is actually the error, it should be reset, so that the tensile testing machine will be tested next time.
The above is the relevant introduction about the calibration of the tensile testing machine.
I believe that everyone has a corresponding understanding of this after reading it.
You can use it as a reference and hope it will be helpful to you
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