Ruggedized gas detector

Details Ruggedized gas detector Ruggedized gas detector

1994-12-05

1995-12-12

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503385, G01N 2161, G01N 2117

Patent

active

054752221

ABSTRACT:
A ruggedized gas detector having two or more perforated concentric cylinders and having a concentric screen inside the innermost cylinder. A pair of perforated tubes are positioned inside the perforated screen, and an infrared light source is placed adjacent one end of one of the tubes and an infrared sensor is placed adjacent the other tube. A pair of inclined mirrors are positioned adjacent the respective other ends of the two tubes, and an optical light path is created from the IR source through a first tube, reflected by the mirrors to a return optical path through the second tube and ultimately to the IR sensor.

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