Patent · US Active

Apparatus and method for in-situ calibration of a photoacoustic sensor

US10527589B2 · kind B2 · utility

4Cited by

6References

21Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Stefan Kolb · Unterschleißheim, DE
Alfons Dehe · Reutlingen, DE
Jochen Huber · Wolfach, DE
Franz Jost · Stuttgart, DE
Horst Theuss · Wenzenbach, DE
Juergen Woellenstein · Glückstadt, DE

Key dates

Filing date	Sep 7, 2016
Grant date	Jan 7, 2020
Priority date	—
Expiry date	Dec 26, 2037

Classification

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

Abstract

An apparatus for in-situ calibration of a photoacoustic sensor is provided. The apparatus includes a light emitter to emit light along a transmission path to a gas and an acoustic sensor element configured to detect an acoustic signal emitted from the gas based on the received light. Furthermore, the apparatus includes a sensing unit configured to detect the light transmitted along the transmission path and to provide an output signal, and a calibration unit to receive the output signal from the sensing unit and to provide a calibration information based on the output signal received from the sensing unit.

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