Object detector utilizing a threshold detection distance and sup

Details Object detector utilizing a threshold detection distance and sup Object detector utilizing a threshold detection distance and sup

1990-04-10

1994-10-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356 4, G01V 904

Patent

active

053549830

ABSTRACT:
A method and apparatus are disclosed which allow for the detection of an object (14) by the generation of a radiated beam (18) and a subsequent reflection by the object (14) of a portion (20) thereof. The detection of particulate object material (16) due to a reflection of a portion (22) of the generated beam (18) is minimized.

REFERENCES:
patent: 4029957 (1991-02-01), Betz et al.
patent: 4788439 (1991-02-01), Hardy et al.

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