Positioning control apparatus

Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems

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Details

318657, G05B 1936

Patent

active

039393895

ABSTRACT:
A device for positioning a part comprises a signal generator which, upon movement of said part within the vicinity of a required position of the part, produces a signal value which passes through zero at a point when said part is in said required position, and a servo system responsive to said signal value to transmit movement to said part until said signal value reaches zero. The signal generator may operate to define a predetermined stop position into which a part, for example a machine part or a workpiece, is to be moved, or, in cooperation with an appropriately movable member, it may be used to trace a predetermined pattern of movement so that the part to be moved follows said pattern.

REFERENCES:
patent: 2708730 (1955-05-01), Alexander et al.
patent: 2712082 (1955-06-01), Yeasting
patent: 3293759 (1966-12-01), Moe et al.
patent: 3594626 (1971-07-01), Palmer
patent: 3626283 (1971-12-01), James
patent: 3711758 (1973-01-01), Lelandais

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