Angle measuring arrangement

Details Angle measuring arrangement Angle measuring arrangement

1989-10-24

1991-03-19

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250237G, 25022721, G01D 534

Patent

active

050013408

ABSTRACT:
An interferometric type photoelectric measuring device is disclosed. The photoelectric angle measuring device includes a graduation carrier having a circular graduation and a scanning arrangement for the diametral scanning of the circular graduation. The scanning arrangement is constructed as an integrated optical circuit.

REFERENCES:
patent: 4555625 (1985-11-01), Mosier et al.
patent: 4654524 (1987-03-01), Kita
patent: 4750821 (1988-06-01), Yamamoto et al.
patent: 4792678 (1988-12-01), Spies
"Photoelektrische Messung der Anderung von Lengen-Order Winkelpositianen mit Hilfe von Beugungsgittern" (Photoelectric Measurements of the Change of Length of Angular Positions with the Aid of Refraction Grids) F. Hock, 1975.
"Laser Rotary Encoders," Tetsuharu Nishimura, et al., Motion, Jul./Aug. 1986.

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