Optical non-contact sensor for detecting material level in a...

Details Optical non-contact sensor for detecting material level in a... Optical non-contact sensor for detecting material level in a...

2008-07-15

2008-07-15

Epps, Georgia Y. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C073S293000, C073S319000

Reexamination Certificate

active

07399985

ABSTRACT:
A detection system for determining material level in a container where the container has an opening and an optical window mounted to the opening. A sensor element is mounted to the container adjacent the window. The sensor element has an optical emitter and an optical receiver positioned to form a triangular vertex with the material surface level within the container.

REFERENCES:
patent: 4247784 (1981-01-01), Henry
patent: 5073253 (1991-12-01), Bishop
patent: 6568263 (2003-05-01), Snelling
patent: 6615658 (2003-09-01), Snelling
patent: 7017408 (2006-03-01), Ramus et al.
patent: 407275977 (1995-10-01), None
patent: 10-300558 (1997-05-01), None

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