Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Patent
1976-09-20
1978-06-13
Dobeck, B.
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
318608, 364770, G05B 1928
Patent
active
040951588
ABSTRACT:
A position-controlling system which comprises a reference counter periodically giving a referential pattern numeral; a resolver forming an excited waveform from the referential pattern numeral given by the reference counter and detecting the position (angle of rotation) of a movable machine section in the term of a phase data per prescribed period of time; a buffer register loaded with the content of the reference counter corresponding to the phase data; and a controller supplied with a data on the detected position of the movable machine section stored in the buffer register and a data of the position instruction thereby to produce an output denoting an accumulative position errors occurring per prescribed period of time in the actual moving of the movable machine section, and wherein a servo system is operated upon receipt of a periodic output from the controller according to instructions on the momentarily changing positions of the movable machine section, thereby controlling the machine positions.
REFERENCES:
patent: 3854081 (1974-12-01), Benaglio
patent: 3872369 (1975-03-01), Rich
patent: 4023085 (1977-05-01), Bishop et al.
Dobeck B.
Tokyo Shibaura Electric Co. Ltd.
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