Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1994-06-29
1996-04-23
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
356337, G01N 2190
Patent
active
055106200
ABSTRACT:
To detect a contaminant in a moving container, radiant energy is directed into the moving container. Thereafter, a level of radiant energy scattered by contents of the moving container is detected. The presence of a contaminant is indicated when the detected level of scattered radiant energy differs from a threshold level. Scattered radiant energy detected by the system includes that scattered by turbid materials within the container and that scattered by foam within the container. Detection of turbid materials or foam may be combined with spectral contaminant detection.
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Achter Eugene K.
Beaty John S.
Bosworth Jonathan
Klotzsch Helmut W.
Lieb David
Hanig Richard
Thermedics Detection Inc.
Willis Davis L.
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