Integrated compliance servovalve

Details Integrated compliance servovalve Integrated compliance servovalve

1995-10-16

1996-10-22

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

With protective or reliability increasing features

318645, 25112911, 446330, F15B 909

Patent

active

055680224

ABSTRACT:
An integrated compliance electrohydraulic servovalve system connected to a load such as a simulated living being to provide more realistic movement thereto. The system includes a pressure transducer for sensing the pressure appearing at the output of the electrohydraulic servovalve and which is applied to an actuator connected to the load. The pressure as sensed is developed into a corresponding electrical signal which is used as a feed back signal to the drive motor of the electrohydraulic servovalve. The actuator position signal is also provided and is summed with the position command input signal to provide the command signal which is also summed with the pressure signal prior to application to the drive motor. The utilization of the pressure feed back signal provides compliance to the over all system resulting in a realistic movement of the simulated living being.

REFERENCES:
patent: 3958492 (1976-05-01), Curless
patent: 4513782 (1985-04-01), Contartese et al.
patent: 4628499 (1986-12-01), Hammett
patent: 5012722 (1991-05-01), McCormick
patent: 5249117 (1993-09-01), Greenough et al.

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