Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1978-01-06
1979-05-29
Smith, Alfred E.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
G01J 100
Patent
active
041568125
ABSTRACT:
A two beam radiation detector has two gas systems in a metal block. Each system has two detection chambers, one per incident radiation beam, and two chambers, pertaining to different systems, are traversed by the same beam. The two systems further include a common, but biparted, pressure difference sensing chamber containing a flexible membrane.
REFERENCES:
patent: 3725702 (1973-04-01), Schaefer
Hartman & Braun Aktiengesellschaft
Howell Janice A.
Smith Alfred E.
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