Patent · US Active

Photoacoustic gas detector

US10302599B2 · kind B2 · utility

1Cited by

7References

23Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

David Tumpold · Tauberbischofsheim, DE
Alfons Dehe · Reutlingen, DE
Christoph Glacer · Munich, DE

Key dates

Filing date	Oct 27, 2016
Grant date	May 28, 2019
Priority date	—
Expiry date	May 26, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01N2291/021
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A photoacoustic gas detector may include: a gas chamber configured to receive a gas to be analyzed therein, an excitation element configured to selectively excite gas molecules of a specific type that is to be detected in the gas received in the gas chamber in a time-varying fashion, thereby generating pressure differences, a sensor configured to detect pressure differences generated by the excitation element, and a pump configured to pump gas between the exterior of the photoacoustic gas detector and the gas chamber.

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