Detector device for a blade tracking system having two sensors

Details Detector device for a blade tracking system having two sensors Detector device for a blade tracking system having two sensors

1988-03-16

1989-03-14

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356 28, 250561, G01V 904

Patent

active

048126438

ABSTRACT:
The present invention relates to a detector for a blade tracking system. The detector comprises a lens for focusing in a plane a bundle of radiation passing therethrough. Two or more radiation sensors are disposed within the plane, in such an arrangement that an object passing through the radiation bundle is sensed sequentially by the sensors.

REFERENCES:
patent: 2960908 (1960-11-01), Willits et al.
patent: 3023317 (1962-02-01), Willits et al.
patent: 3799671 (1974-03-01), Schweizer
patent: 3804518 (1974-04-01), Meyr
patent: 3865487 (1975-02-01), Andermo
patent: 4329047 (1982-05-01), Kikuchi et al.
patent: 4727258 (1988-02-01), Tyssen et al.

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