Pneumatic pressure modulator and method of pressure modulation

摘要

The invention relates to a pneumatic pressure modulator and the corresponding method. This modulator comprises a relay valve interposed between a source of pressure and a user device, this valve being driven by two solenoid valves 14, 15 which are controlled in turn by a microprocessor 19 receiving datum values and the signals representing the supply pressure, the required pressure and the instantaneous pressure transmitted to the user device. Application to pneumatic control systems. <IMAGE>