Gas sample chamber

Details Gas sample chamber Gas sample chamber

G - Physics

01

N

G01N 1/22 (2006.01) G01N 21/05 (2006.01) G01N 21/25 (2006.01) G01N 21/35 (2006.01) G08B 17/117 (2006.01) G08B 29/20 (2006.01) G01J 1/16 (2006.01) G01J 1/18 (2006.01) G01N 21/03 (2006.01) G01N 21/31 (2006.01)

Patent

CA 2101082

A gas sample chamber (10) for use in a gas analyzer consists of an elongated hollow tube (21) having an inwardly-facing specularly-reflective surface (22) that permits the tube to function also as a light pipe for conducting radiation from a source (20) to a detector (16) through the sample gas. A number of apertures (24) in the wall of the elongated hollow tube permit the sample gas to enter and exit. Particles of smoke and dust of a size greater than 0.1 micron are kept out of the chamber by use of a semi- permeable membrane (28) that spans the apertures in the hollow tube. Condensation of the sample gas components is prevented by heating the sample chamber electrically to a temperature above the dew point of the component of concern.

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