Small dc servomotor powered by simple constant-current source and with suitable gearing used to cancel effect of gravity upon load. Lead-screw positioning system has load counterbalanced by small supplementary motor powered by constant current source. Motor lighter and more compact alternative to counterbalance. Used in variety of mechanical systems where load positioned or accelerated in vertical plane.
Gravity Compensation Technique Uses Small dc Motor
NASA Tech Briefs ; 12 , 8
1988-09-01
Miscellaneous
No indication
English
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