Sensor

The sensor is an important part of the accuracy and force stability of the test machine. At present, the types of electronic universal testing machine sensors on the market are S-type and spoke type. The internal resistance strain gauge of the sensor is not high, and the anti-aging ability of the rubber for fixing the strain gauge is not good, and the material of the sensor is not good, which will affect the accuracy of the sensor.

Ball screw    

Electronic universal testing machine screw currently used ball screw and trapezoidal screw. Generally trapezoidal screw gap is relatively large, the friction force is relatively large, short life. At present, there will be some manufacturers on the market, in order to save more cost and gain more profits, the use of trapezoidal screw instead of ball screw.

Motor

The high-quality electronic universal testing machine motor adopts AC servo speed control system and Panasonic AC servo motor. The performance is stable and reliable, and it has protection devices such as overcurrent, overvoltage and overload. At present, there is also an electronic universal testing machine on the market that uses ordinary three-phase motor or variable frequency motor. This kind of motor adopts analog signal control, the control reaction is slow, the positioning is inaccurate, and the general speed regulation range is narrow, and there is no low speed.

Software and hardware

The high-quality electronic universal testing machine adopts brand computer, which has the characteristics of fast running speed, gentle interface and simple operation.It can meet the test and measurement needs of different materials,the physical properties of various materials can be tested according to national standards, international standards or industry standards.

Transmission system

There are two main types of transmission parts of the electronic universal testing machine, one is the arc synchronous gear belt, the precision screw shaft is driven; the other is the ordinary belt transmission. The first transmission mode has stable transmission, low noise, high transmission efficiency, high precision and long service life.The second transmission method cannot guarantee the synchronization of the transmission, so the accuracy and stability are not as good as the first transmission system.