Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1980-06-06
1982-06-29
Smith, Alfred E.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250255, 250351, G01J 100, G01V 500
Patent
active
043373968
ABSTRACT:
Sand containing bitumen and like materials containing organic matter is analyzed quantitatively for its hydrocarbon content by use of a remote infrared sensor. In a preferred embodiment the bitumen is on a conveyor to further processing and if found unacceptable for processing by the method of the invention, the sand is automatically diverted. The invention also embodies the apparatus used for the analysis.
REFERENCES:
patent: 3539807 (1970-11-01), Bickel
patent: 3631246 (1971-12-01), Defriez
patent: 3783284 (1974-01-01), McCormack
patent: 3793525 (1974-02-01), Burch et al.
patent: 3899213 (1975-08-01), Fantasia et al.
patent: 4109522 (1978-08-01), Thompson
patent: 4157655 (1979-06-01), Campbell et al.
"A Laser Eye in the Sky May Help Spot Polluters", Chemical Week, Jun. 13, 1979, pp. 29-30.
King Vincent W.
Lau Keyser K.
Lauer James L.
Hess J. Edward
Howell Janice A.
Johnson Donald R.
Lipsitz Paul
Smith Alfred E.
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