Device for the exact positioning of a movable part

Details Device for the exact positioning of a movable part Device for the exact positioning of a movable part

1974-07-16

1976-08-24

Schaefer, Robert K.

Electricity: motive power systems

Positional servo systems

Multiple mode systems

318603, G05B 1118

Patent

active

039769291

ABSTRACT:
A device for the precise positioning of a movable member includes means for generating signals permitting localization of successive stop positions of the moving member and means for generating a pulse whenever the member approaches any stop position within a distance that equals a given fraction of the distance between two successive positions; when the member approaches a prescribed stop position, the relevant pulse ensures the enablement of a circuit that controls the precise stopping of the member. The device is particularly useful for setting a magnetic head on a given track of a magnetic disc.

REFERENCES:
patent: 2947929 (1960-11-01), Bower
patent: 3117263 (1964-01-01), MacDonald
patent: 3458785 (1969-07-01), Sordello
patent: 3473098 (1969-10-01), Waller
patent: 3473100 (1969-10-01), Anger
patent: 3729668 (1973-04-01), Brette
patent: 3737883 (1973-06-01), Sordello et al.
Padalino et al., "Track-Following Servosystem," IBM Tech. Discl. Bulletin, vol. 11, No. 10, 3/69.
Arthur et al., "Linear Position Sensing System," IBM Tech. Discl. Bulletin, vol. 12, No. 1, 6/69.

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