Electrical shaft system

Details Electrical shaft system Electrical shaft system

1974-10-22

1976-12-28

Dobeck, Benjamin

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Running-speed control

318 85, 318655, G05B 106

Patent

active

040004490

ABSTRACT:
Two movable members driven by individual motors are positioned accurately at any given time and are tracking each other for all displacements. Individual positioning is used with differential positioning to force a follow-up of one member relative to the other. One feedback position loop provides a master reference for a second position loop of the slave motor drive, and the differential position signal makes the second loop operate as a vernier of the master loop. A limiter prevents the master drive from running ahead of the slave drive.

REFERENCES:
patent: 2004770 (1935-06-01), Setter
patent: 2888129 (1959-05-01), Chapman
patent: 3076906 (1963-02-01), Simo
patent: 3079531 (1963-02-01), Tugwood
patent: 3462665 (1969-08-01), Espey et al.
patent: 3841589 (1974-10-01), Appleby et al.

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