Patent · US Active

Nondispersive infrared gas detection sensor

US10386298B2 · kind B2 · utility

3Cited by

3References

18Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Pierre Barritault · Grenoble, FR
Serge Gidon · La Murette, FR

Key dates

Filing date	Feb 21, 2017
Grant date	Aug 20, 2019
Priority date	—
Expiry date	Feb 21, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01N2201/0873
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sensor including an optical cavity capable of receiving the gas, and defined by first and second opposite ends and a connecting portion connecting said ends; a light source arranged to emit infrared light in the optical cavity; at least one infrared detector arranged to detect the infrared light; at least one mirror arranged in the optical cavity to guide the infrared light towards said at least one infrared detector; the sensor being remarkable in that it includes first and second reflective elements respectively extending at the first and second ends of the optical cavity, and having an infrared light reflection coefficient greater than or equal to 75% for any angle of incidence.

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