Do you know why the universal testing machine produces errors

The universal testing machine control system is a system that controls the operation of the testing machine. People can control the operation of the test machine through computer operations, and can obtain the status of the test machine and various test parameters through the computer display screen. Functions and data processing analysis can also be implemented through computers and test results can be printed. Today, the editor will introduce to you why the universal testing machine produces errors. Let’s take a look.

Communication between the test machine and the computer is usually transmitted through a multi-function USB interface. It communicates through the serial port (COM port) behind the computer.Chongqing Cancer HospitalThe technology is mature, reliable and easy to use. Computer software is used to collect and process analytical data. After entering the test interface, the computer will continuously collect various test data, draw test curves in real time, and automatically print test result parameters and curve reports, etc.

1. Random error of universal testing machine: that is, if the same parameter is repeatedly measured multiple times under the same conditions, the measured values ​​obtained cannot be exactly the same.

Cause:

① During the test process, the friction force in the test machine will change

② Changes in environmental humidity, etc.

2. Error error: Errors caused by errors in the test work, negligence and other reasons. This error is irregular and needs to be repeatedly checked to avoid it.

Cause: The electronic universal testing machine is operating incorrectly, the tester reads the number wrongly, and writes the decimal point position in the wrong recording.

3. System error of universal testing machine: errors that maintain certain numerical values ​​or certain regular changes. System errors are regular, and this rule is reflected in every specific experiment. If you find this rule, you can correct it.

Cause:

1. When the resistance strain meter measures the coefficient error on the instrument panel.

2. The value of the universal testing machine is inaccurate, and the measured force value is always too large or too small.

To sum up, the relevant knowledge of the universal testing machine introduced to you by the editor. I hope it will be helpful to you. If you have other questions you want to know, you can continue our customer service staff through the web page. We will serve you wholeheartedly. Welcome your call and support!