The difference between electronic universal testing machine and hydraulic universal testing machine in oil source

The editor of this article will mainly explain it to youThe difference between electronic universal testing machine and hydraulic universal testing machine in oil source.

(1) The hydraulic universal testing machine is limited by the oil source flow rate.

The hydraulic universal testing machine has a low test speed; the manual hydraulic universal testing machine is relatively simple to operate and cheaper, but has a low control accuracy. The electro-hydraulic servo universal testing machine has a lower performance than the electronic universal testing machine, and the control accuracy will not be poor except for the low speed.

A microcomputer-controlled electro-hydraulic servo universal testing machine with load sensor can also achieve a force accuracy of about 0.5%, and it is more reliable, more stable, and has a higher cost-effectiveness when conducting large-tonnage material mechanical tests.

(2) The electronic universal testing machine does not use oil sources.

Because the electronic universal testing machine does not use oil sources, the equipment will be cleaner and more convenient to use and maintain. The test speed range of the electronic universal testing machine can be adjusted, the test speed can reach 0.001mm/min-1000mm/min, the speed ratio can reach 1 million times, and the test stroke can be determined according to needs, making it more flexible.

The force measurement accuracy is high, and some can even reach 0.2%. It has small size, light weight and large space, making it convenient to add corresponding devices to perform various material mechanical tests. Really achieve multi-purpose one machine. Currently, the electronic universal testing machines produced by mainstream Jinan test machine manufacturers in China can all achieve load control, strain control, and displacement control so-called three-closed loop control.