Closed loop electro-fluidic control system

Abstract From the Canadian patent

Abstract of the Disclosure, Two embodiments of closed loop electro-fluidic controlled systems are disclosed for controlling the velocity acceleration, torque, force or pressure applied to a member. The system includes a source of electrical command signals correlatedto the desired magnitude of the parameter being controlled a, transducer responsive to the controlled member for providing an electrical feedback signal correlated to the actual value of the parameter, and a circuit for providing an error signal correlated in magnitude and polarity to the magnitude and sense of the difference between the actual and desired values of the controlled parameter. Also included is a transducer …