Patent · US Active

Photoacoustic detector unit, photoacoustic sensor and associated production methods

US11733213B2 · kind B2 · utility

0Cited by

1References

19Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Rainer Markus Schaller · Kelheim, DE
Matthias Eberl · Schweinhub, DE
Simon Gassner · Munich, DE
Franz Jost · Stuttgart, DE
Stefan Kolb · Unterschleißheim, DE

Key dates

Filing date	Dec 1, 2020
Grant date	Aug 22, 2023
Priority date	—
Expiry date	Jul 27, 2041

Classification

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

Abstract

A photoacoustic detector unit comprises a housing having an opening, and also a photoacoustic transducer designed to convert optical radiation into at least one from a pressure signal or a heat signal. The photoacoustic transducer covers the opening of the housing, such that the photoacoustic transducer and the housing form an acoustically tight cavity. A pressure pick-up is arranged in the acoustically tight cavity.

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