Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1977-02-10
1978-04-04
Borchelt, Archie R.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250252, 250339, 356243, G01D 1800
Patent
active
040829502
ABSTRACT:
A calibration assembly for an infrared moisture analyzer used for measuring the moisture content of tobacco leaf is described. The assembly comprises a housing for a glass window etched on at least one face and a layer of a particulate material having average particle sizes of about 50-100 microns. The assembly is characterized as having a reflectance similar to that of tobacco.
REFERENCES:
patent: 3205355 (1965-09-01), Ehlert
patent: 3478210 (1969-11-01), Janacek
Borchelt Archie R.
Loew's Theatres, Inc.
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