Control principle of electronic universal testing machine

Electronic universal testing machinePowered by the motor, the fixture is controlled to drive the sample to perform tensile, compression, bending, peeling, tearing and other tests. The test force, displacement, deformation, etc. are displayed on the computer screen or on the LCD screen. The tensile strength, compression strength, peeling strength, yield strength, elongation, etc. of the material are automatically calculated, and various reports can be printed.
Motors are divided into stepper motors, DC servo motors and AC servo motors. A simpler tensile tester can also use three-phase asynchronous motors. At present, the more commonly used motors are: stepper motors and AC servo motors, which are characterized by easy control, low noise, large output torque, and even constant torque.
When a pulse or signal is sent to the motor, the motor will rotate and change with the number of pulses, frequency and other speed. The signal feedback is assisted by other components, which will serve the purpose of control, and the speed can be fast or slow. http://www.hssdtest.com/