SERVOMECANISMO NEUMATICO PARA SISTEMA DE CONTROL ELECTRONEUMATICO EN BUCLE CERRADO

摘要

A pnemuatic servo assembly (20) is provided for an electro-pneumatic control system (10) having closed loop control of a DC motor (12) operated from an error signal (56) developed from an electrical set point signal (40) and a pneumatic feedback signal (44). The feedback signal (44) is made compatible by a pressure transducer (26) monitoring a pressure output signal (22) of the pneumatic servo assembly (20) and establishing an electrical signal indicative thereof which is scaled, zeroed, and amplified by an amplifier unit (46).