Research on Pressure Fluctuation Feature of Electric Cylinder

Pressure fluctuation is adopted when exploring the output´s stability of the electric cylinder. To study its properties, pressure detection system is modeled and a dedicated workbench is built after selecting sensors of pressure, method of collecting data and electric cylinder. By a series of experiments, pressure data are collected. The signals are low-pass filtered according to the characteristics of mechanical vibration and then analyzed with the FFT method. When the main features of pressure and frequency are obtained, the second round filter is ready. Then the value of load tolerances can be calculated as a quantization parameter to compare with national standard. The result shows that the pressure which is provided by electric cylinder is fully in compliance with the requirements.