Encoder

Details Encoder Encoder

1987-10-20

1989-07-18

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

G05B 1929

Patent

active

048496804

ABSTRACT:
An absolute-type encoder is coupled to a drive shaft, which is rotatively driven by a motor, for detecting the amount of rotation of the drive shaft. The encoder includes a rotary disk storing position information and rotated in accordance with rotation of the drive shaft, a magnetic head for reading, in the form of a serial signal, the position information stored on the rotary disk, a counter for counting the holding information read by the magnetic head and outputting the information in the form of parallel information, and a battery for supplying operating power to the counter and magnetic head.

REFERENCES:
patent: 3324369 (1967-06-01), Markakis
patent: 3670228 (1972-06-01), Crosby
patent: 4061901 (1977-12-01), Saunders et al.
patent: 4065968 (1978-01-01), Sunagawa
patent: 4197489 (1980-04-01), Dunn et al.
patent: 4206392 (1980-06-01), Shimajiri
patent: 4313074 (1982-01-01), Nomura et al.
patent: 4507590 (1985-03-01), Miyazaki
patent: 4540925 (1985-09-01), Jones
patent: 4689528 (1987-08-01), Watanabe
patent: 4717864 (1988-01-01), Fultz

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