Patent · US Active

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

US11154216B2 · kind B2 · utility

0Cited by

3References

15Claims

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	Oct 26, 2021
Priority date	—
Expiry date	Aug 27, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/052
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device (1) for determining the concentration of a gas component is configured with a radiation source (30) for radiating (31) light as a light emission in an infrared wavelength range. Two detector arrays (52, 62) with two detector elements (50, 60) are configured suitably for detecting the light emission generated by the radiation source (30) in two detector arrays (52, 62). Two filter elements (51, 61) are associated with the detector elements (50, 60). The two detector elements (50, 60) are oriented in relation to the radiation source, so that a range of overlap (65) is obtained due to the two detector arrays (52, 62). The range of overlap (65) causes attenuations in the propagation of light, which may be due to gas molecules or moisture (400). The attenuations in the propagation of light affect both detector elements (50, 60) and are compensated concerning the determination of the concentration.

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