Analog computing system having dynamic servo response

Claim 1

IN AN ANALOG COMPUTER, A STABILIZED FAST-RESPONSE SERVO SYSTEM FOR REPRESENTING A CONDITION AS INDICATED BY THE INSTANTANEOUS POSITION OF THE SERVO, COMPRISING A SERVO MOTOR, A COMBINED INPUT SIGNAL NETWORK AND AMPLIFIER FOR ENERGIZING SAID MOTOR, AN INTEGRATOR, A FIRST ANALOG COMPUTER SIGNAL REPRESENTING RATE-OF-CONDITION CHANGE, A FUNCTION GENERATOR ENERGIZED BY AID COMPUTER SIGNAL AND CONTROLLED BY SAID MOTOR FOR PRODUCING A NON-LINEAR RATE FUNCTION SIGNAL THAT IN TURN IS APPLIED TO THE INPUT OF SAID INTEGRATOR, THE OUTPUT SIGNAL OF SAID INTEGRATOR REPRESENTING THE INTEGRAL OF THE AFORESAID NON-LINEAR RATE FUNCTION SIGNAL, MEANS INCLUDED IN SAID SERVO SYSTEM FOR PRODUCING A STABLIZING FEEDBACK SIGNAL REPRESENTING RATE-OFCONDITION CHANGE, A SECOND ANALOG COMPUTER SIGNAL POTENTIAL OPPOSITE IN SENSE TO SAID FEEDBACK SIGNAL LIKEWISE REPRESENTING A RATE-OF-CONDITION CHANGE, NON-LINEAR MEANS FOR DERIVING ACCORDING TO THE SERVO MOTOR SHAFT ANGLE A POSITION SIGNAL OPPOSITE IN SENSE TO THE AFORESAID INTEGRATOR SIGNAL, THE AFORESAID NETWORK BEING ENERGIZED JOINTLY BY THE AFORESAID SECOND COMPUTER RATE SIGNAL, INTERGRATOR SIGNAL, POSITION SIGNAL AND FEEDBACK SIGNAL SO AHT THE SERVO MOTOR IS ENERGIZED TO FUNCTION BOTH AD A STABLIZED INTEGRATING SERVO AND AS A POSITIONING SERVO FOR PRECLUDING DRIFT OR CUMULATIVE ERROR OF FUNCTION SIGNALS WITH RESPCT TO THE SECOND COMPUTER RATE INPUT SIGNAL, AND THE NONLINEAR OUTPUT SIGNAL OF SAID INTEGRATOR IS INSTANTLY AVAILABLE FOR USE IN THE ANALOG COMPUTER, INDEPENDENTLY OF AND LAG IN THE RESPONSE OF THE SERVO MOTOR.