Patent · US Active

Gas concentration-measuring device

US8199326B2 · kind B2 · utility

1Cited by

8References

31Claims

0Family size

Assignee

DRÄGERWERK AG & CO. KGAA · DE

Inventors

Peter Dreyer · Bad Schwartau, DE
Günter Steinert · Ondernemingsweg, DZ
Alfred Kelm · Badendorf, DE
Christian Jäger · Wulfen, DE
Livio Fornasiero · Bliestorf, DE
Hartmut Stark · Stockelsdorf, DE
Ralf Buchtal · Lübeck, DE
Burkhard Stock · Wulfen, DE
Ralf Doring · Heiligenhaus, DE

Key dates

Filing date	Jan 19, 2010
Grant date	Jun 12, 2012
Priority date	—
Expiry date	Dec 17, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG01N2201/069
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A gas concentration-measuring device makes it possible to measure gas components in a gas sample. An interferometer, based on a dual-band Fabry-Perot interferometer (1), is provided with a transmission spectrum that can be set by a control voltage (38). The control voltage (38) of the dual-band Fabry-Perot interferometer (1) is synchronized over the course of time with the activation and deactivation of the radiation sources (11, 12).

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