The difference between performance electronic tension testing machine and conventional

Because it has three control modes: load, strain, and displacement, the stability of the whole machine is directly related to the stiffness of the system, and the stiffness of the sample directly affects the stiffness of the system.

Like conventional electronic universal testing machines, the high-performance electronic universal testing machines also use servo motors as power sources, and the lead screws and wire masters are used as execution components. The difference between it and conventional electronic universal testing machines is that its control method can be load control, strain control or displacement control.
In addition to the characteristics of conventional electronic universal versatile speed and large stroke, it also has all the advantages of electro-hydraulic servo testing machines, so it is a universal material testing machine with current performance. At present, the best of this type of test machine are basically used as core control components.
Therefore, when there are many types of test samples, the stiffness of the whole machine will change greatly, so it is difficult to ensure that all tests can be carried out normally. In order to meet the normal operation of all tests, the parameters of the control system (P, I, D parameters) need to be adjusted at any time, which is difficult for non-automatic control professionals, so that the advantages of this type of test machine cannot be fully utilized.