Patent · US Active

Device for determining the concentration of at least one gas component in a breathing gas mixture

US10502682B2 · kind B2 · utility

0Cited by

9References

8Claims

0Family size

Assignee

DRÄGERWERK AG & CO. KGAA · DE

Inventors

Peter Dreyer · Bad Schwartau, DE
Günter Steinert · Ondernemingsweg, DZ
Bernd-Michael DICKS · Damlos, DE
Ralph-Peter JACOBI · Reinbek, DE

Key dates

Filing date	Oct 27, 2017
Grant date	Dec 10, 2019
Priority date	—
Expiry date	Oct 27, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01N2201/0686
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device (1) for determining the concentration of a gas component is configured with a radiation source (30) for emitting (31) a light radiation or heat radiation in an infrared wavelength range. A detector array (40) has at least two detector elements (50, 60), configured to detect the radiation generated by the radiation source (30), in an angular arrangement (52, 62) and with filter elements (51, 61). At least one of the two detector elements (50, 60) is oriented in an angular arrangement (52, 62) in relation to a vertical axis (32), so that a range of overlap (65) is obtained due to the angular arrangements (52, 62). The range of overlap (65) causes attenuations in the propagation of light, which attenuations may be due, for example, to gas molecules or moisture (400), affect both detector elements (50, 60) and are thus compensated concerning the concentration determination.

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