Positive feedback mechanism for servocontroller of fluid operate

Details Positive feedback mechanism for servocontroller of fluid operate Positive feedback mechanism for servocontroller of fluid operate

1978-02-06

1980-06-03

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Regenerative or positive feedback type

91365, 91374, 91388, 91506, F15B 1316, F15B 910

Patent

active

042055903

ABSTRACT:
The dynamic performance of hydraulic apparatus including a fluid-operated actuator controlled by a servo-controller, is improved by providing phase lead compensation to the controller in response to movement of the movable element of the actuator so that the low frequency response of the apparatus is raised.

REFERENCES:
patent: 1109022 (1914-09-01), Spicer
patent: 2603065 (1952-07-01), Sorto
patent: 2789543 (1957-04-01), Popowsky
patent: 2947286 (1960-08-01), Boltus et al.
patent: 2995116 (1961-08-01), Dobbins
patent: 3429225 (1969-02-01), Keyworth

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