The research of a programmable and high precision gas pressure generator

High precision and programmable pressure generating device is needed in pressure system test, pressure meter calibration and other occasions, which is used to generate a variety of standard pressure. The traditional pressure generator using manual pressure has low accuracy, low efficiency, high price. In the paper, a high precision and full automatic gas pressure generator is proposed, which applies intelligent control theory to the pneumatic control system, solves the nonlinear and uncertainty. The paper also introduces the principle and implementation of system project. The system can implement PC SPC output through RS232 communication interface. Experiments show that the system has advantages of high precision, pressure change smoothly, small size and flexible operation etc.