Gimbal employing differential combination of offset drives

Details Gimbal employing differential combination of offset drives Gimbal employing differential combination of offset drives

1997-01-16

1998-06-23

Marmor, Charles A.

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

475 7, 475150, 475223, 74665F, 74665GB, 74665M, F16H 3706

Patent

active

057697485

ABSTRACT:
A gimbal system includes a pair of stepper motors that drive respective drive trains of a differential drive assembly such as a differential gear assembly. Either the drive ratios or the step sizes for the two motors are offset from each other to provide four modes of operation, including modes for improved resolution and faster slew rate, and two intermediate modes with more balanced resolution and slew rate.

REFERENCES:
patent: 2785369 (1957-03-01), Ligh
patent: 2992563 (1961-07-01), Lassen
patent: 4175451 (1979-11-01), Ward
patent: 4515026 (1985-05-01), Perkins
patent: 4746826 (1988-05-01), Burney
patent: 5342254 (1994-08-01), Sula
patent: 5415595 (1995-05-01), Nelson
patent: 5501522 (1996-03-01), Tung
patent: 5509866 (1996-04-01), Weightman

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