Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1983-11-14
1986-10-21
Anderson, Bruce C.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250345, G01J 100
Patent
active
046187715
ABSTRACT:
An improved non-dispersive infrared analyzer. The analyzer includes an improved source assembly having a reflecting element with a concave annular reflecting surface, and a circular heating element which is located substantially at the focal region of the reflective surface. The analyzer also includes an improved detecting assembly having a reflecting element with a paraboloid reflective surface that focuses radiation on one or more detecting elements that are located out of the field of view of the reflecting element. Because of the better collimation and more efficient use of its infrared beam, analyzers which include these source and detecting assemblies may use sample cells having non-reflective inner surfaces, and thereby provide output signals of improved stability.
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Anderson Bruce C.
Beckman Industrial Corporation
Hanig Richard
Vanderburgh John E.
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