Method of measuring concentration of nonpolar gases such as carb

Details Method of measuring concentration of nonpolar gases such as carb Method of measuring concentration of nonpolar gases such as carb

1995-10-18

1997-04-29

Williams, Hezron E.

Measuring and testing

Gas analysis

With compensation detail

73 3102, G01N 700

Patent

active

056251394

ABSTRACT:
The invention relates to a method and sensor structure for measuring the concentration of nonpolar gases such as carbon dioxide. According to the method, the concentration of the nonpolar gas adsorbed/absorbed in a polymer film (2) is determined by detecting the weight of the polymer film (2). According to the invention, the dielectric coefficient of the polymer film (2) is measured, and on the basis of this, a correction is made in the concentration measurement result obtained from the weight measurement. (FIG. 1)

REFERENCES:
patent: 4730479 (1988-03-01), Pyke et al.

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