G - Physics – 01 – N
Patent
G - Physics
01
N
50/1, 73/0.5
G01N 7/00 (2006.01) G01N 33/00 (2006.01) G05D 11/035 (2006.01)
Patent
CA 1287981
ABSTRACT A device and related method adapted to generate a gas flow containing a precise amount of impurities. The device comprises a membrane through which an impurity gas permeates and mixing means to make a mixture of said impurity gas and a vector gas sweeping said membrane. The pressure of said mixture is substantially constant, but adjustable, to enhance the accuracy of the device.
574618
Brandt Michael D.
Mermoud Francois
Brandt Michael D.
L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Proced Es Geo
Mermoud Francois
Swabey Ogilvy Renault
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