Measuring and testing – Gas analysis – By thermal property
Reexamination Certificate
2009-03-25
2011-11-15
Williams, Hezron E (Department: 2856)
Measuring and testing
Gas analysis
By thermal property
Reexamination Certificate
active
08056394
ABSTRACT:
In a procedure for measuring the concentration of a target gas, a gas sensor is provided whose sensor signal at constant temperature is dependent on a target gas concentration and has a lower measurement sensitivity in a first modulation range than in a second modulation range. The position of the modulation ranges is dependent on the temperature. The temperature of the gas sensor is controlled so that the sensor signal is essentially independent of the target gas concentration and lies within the second modulation range. The temperature of the gas sensor is then a measurement for the target gas concentration.
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Frerichs Heinz-Peter
Kolleth Tobias
Wilbertz Christoph
Zimmer Hans-Günter
Kolb Nathaniel
Micronas GmbH
Muncy Geissler Olds & Lowe, PLLC
Williams Hezron E
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