Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1996-02-12
1997-08-12
Ip, Paul
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
318628, 31856811, 901 4, 901 8, B25J 300, H02K 2906, G05B 1942
Patent
active
056569033
ABSTRACT:
Both a pneumatic, linear actuator operating as a slave actuator and a master linear actuator formed by an electric motor driven screw mechanism are linked to drive a load. The high accuracy master linear actuator has a conventional control system which dominates the control of load position or other control variable. A force sensor detects the force applied to the load by the master actuator or the force is calculated by a computer and the sensed force signal is applied to a slave actuator control to cause the slave to apply a supplemental force, typically considerably greater than the master actuator force, to the load as a function of the master actuator force. This obtains the high accuracy characteristic of the master actuator system simultaneously with the high force characteristic of the slave actuator.
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Holmes Robert G.
Shui Fang
Foster Frank H.
Ip Paul
The Ohio State University Research Foundation
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