The core part of the electro-hydraulic servo dynamic and static testing machine is the servo control system. The controller is a fully digital controller that uses the most popular and most advanced digital signal processor (DSP) technology in the control field and the high-speed under the WINDOWS XP/7 system. Real-time hardware interrupt technology, command signals and control signals are all generated by digital operations, which ensures the reliability and repeatability of the control system, can realize complex servo loading functions, and is widely used in the field of dynamic testing machines.

The supporting application software runs on the WINDOWS platform, and all operations are performed on the Chinese virtual panel, which can conveniently perform various static and dynamic loading test settings and parameter setting functions; test data can be imported into word, excel and other software , It can also collect and store test data in real time. Draw multiple curves in real time. Perfect graphics processing functions, such as curve enlargement, curve center point movement, real-time drawing of load-time, displacement-time and other curves. The main control modes include load, displacement, deformation, torque, displacement and angle, etc. Each control mode can be freely combined to form a variety of complex test loading spectra, and the switching of control modes is free and smooth.

Number of control channels: 1-4, each channel includes two closed-loop control loops of test force and displacement, and has the function of undisturbed and smooth switching of control modes. The deformation measurement circuit is a special option.

The highest closed-loop control data refresh frequency is 6kHz;

The resolution of A/D and D/A of the controller is 16 bits;

Signal frequency range: 0.001Hz～100Hz;

Signal generator waveform: ramp wave, sine wave, triangle wave, square wave.

Control accuracy: The typical value of static control accuracy is generally 0.3% FS, and the typical value of dynamic control accuracy is generally 0.5% FS;

System operating frequency: 0.01-75Hz

Two-stage servo valve drive unit;

Remote hydraulic pump station control function;

Counter capacity: 108;

Other necessary I/O input and output units: four analog inputs, four analog output interfaces; four digital inputs, four digital output interfaces (optional);

Limit parameter setting function;