Preparations for use of electronic universal testing machine and deformation measurement
Preparations for use of electronic universal testing machine and deformation measurement
The computer system of the electronic universal testing machine controls the rotation of the servo motor through the controller and the speed control system. After deceleration by the deceleration system, the moving beam is driven up and down by the precision screw pair to complete the stretching, compression and bending of the sample. , Shear and other mechanical performance tests. How much do you know about the electronic universal testing machine? Now let me introduce to you the preparations before using the electronic universal testing machine and the working principle of deformation measurement.
1. Preparations before using the electronic universal testing machine
1. In an environment with low room temperature and relative humidity.
2. The electronic universal testing machine is installed correctly.
3. There is no corrosive medium around.
4. The power supply voltage fluctuates little;
5. The host must be grounded.
2. Working principle of deformation measurement of electronic universal testing machine
A strain gauge is composed of an elastic element and a strain gauge attached to it. When the moving arm of the extensometer is stressed, it will cause the elastic body to deform and change the resistance value of the strain gauge attached to it. The balanced bridge loses its balance and outputs a voltage signal output proportional to the deformation. Since the electrical signal output by the extensometer is extremely weak, it must be amplified to reach the required value. This work is completely amplified and converted by the A/D converter. Then send it to a single-chip computer for processing, display it in direct reading mode, and transmit it to the computer via RS232 for data processing.
Deformation measurement of the testing machine is an important part of the testing and control system of the testing machine and a key technical link of the testing machine. Selecting a deformation measuring instrument with high reliability and strong stability is one of the factors worthy of consideration by users.
The above is a detailed introduction of the preparations before the use of the electronic universal testing machine and the working principle of deformation measurement. I believe everyone will have a certain understanding of this after reading it. If you have any problems in the operation, you can go to the website Dial our company's service hotline, our technical staff will answer you one by one. Welcome your call and support!
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