Patent ID: 6257529
Filing Date: 2001-07-10
Classification: B64C

Abstract:
A servo actuator apparatus comprising:a first actuator for relatively displacing a first operation unit relatively with respect to a first body unit on the basis of an input signal E1;a first position sensor for detecting a position of the first operation unit with respect to the first body unit and outputting a detection signal D1;a second actuator for displacing a second operation unit relatively to respect to a second body unit on the basis of an input signal E2;a second position sensor for detecting a position of the second operation unit with respect to the second body unit and outputting a detection signal D2;a first difference calculation unit for subtracting the detection signal D2 of the second position sensor from an external command signal C1, and outputting the input signal E1; anda second difference calculation unit for subtracting the detection signal D1 of the first position sensor from an external command signal C2, and outputting the input signal E2,wherein a positive displacement direction of the first operation unit is reverse and series to a positive displacement direction of the second operation unit, and the first and second body units are integrally movable.