Patent · US Active

Method for reducing condensation water in gas sensor arrangements

US7626168B2 · kind B2 · utility

4Cited by

9References

22Claims

0Family size

Assignees

Tyco Electronics Raychem GmbH · DE
Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Joerg Fischer · Munich, DE
Marco Forlenza · Schwanau, DE
Robert Frodl · Birkenfeld, DE
Rudi Minuth · Freising, DE
Kuno Straub · Freising, DE
Thomas Tille · Munich, DE

Key dates

Filing date	Jun 24, 2005
Grant date	Dec 1, 2009
Priority date	—
Expiry date	Sep 25, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/158
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention relates to a method for measuring the presence and/or the concentration of an analyte by means of a gas sensor arrangement and to a corresponding gas sensor arrangement. The gas sensor arrangement comprises a radiation-emitting radiation source, a gas measuring chamber, which may be filled with a test gas containing at least one analyte to be measured, and at least one radiation-detecting detector device which generates an output signal as a function of the presence and/or the concentration of the analyte. In order to be able to reduce the harmful effects of condensation water, which condenses in the gas measuring chamber, the gas measuring chamber according to the invention is heated before the measurement process, such that the wall of the gas measuring chamber assumes a temperature which lies above the dew point of the test gas.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.