Patent · US Active

Gas sensor containing an ultrasonic resonator and use for the detection of gases

US12326422B2 · kind B2 · utility

0Cited by

0References

24Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Matthias Eberl · Schweinhub, DE
Christian Bretthauer · Munich, DE

Key dates

Filing date	Aug 30, 2022
Grant date	Jun 10, 2025
Priority date	—
Expiry date	Sep 28, 2043

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A gas sensor comprises a membrane, a first plate arranged on a first side of the membrane and having through openings for the passage of a gas, a second plate arranged on a second side of the membrane, the second side being situated opposite the first side, and an electronic circuit, which is connected to the membrane, the first plate and the second plate and causes the membrane to emit ultrasonic radiation, and which is configured to determine a resonant frequency of the ultrasonic radiation.

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