Gas analyzer

Details Gas analyzer Gas analyzer

1994-10-11

1996-01-30

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250347, 356246, G01N 2161

Patent

active

054882273

ABSTRACT:
A gas analyser and detector has an infra red source, a gas chamber and a detector cell; the detector cell has a gas sample inlet, inlet and exit paths for an infra red beam and reflector means in the chamber comprising a convex surface and a concave surface. The reflector means ensures a long path length for the beam whilst reducing beam divergence and signal loss.

REFERENCES:
patent: 3319071 (1967-05-01), Werth et al.
patent: 4787750 (1988-11-01), Nelson et al.
patent: 4795253 (1989-01-01), Sandridge et al.
patent: 5116120 (1992-05-01), Picker
patent: 5220402 (1993-06-01), Harvey
patent: 5222389 (1993-06-01), Wong

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