Patent · US Active

Sensor element of a gas sensor and method for operating the same

US8833141B2 · kind B2 · utility

2Cited by

6References

15Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Oliver Wolst · Walzbachtal, DE
Stefan Henneck · Gerlingen, DE
Markus Widenmeyer · Schenefeld, DE
Alexander Martin · Regensburg, DE

Key dates

Filing date	Dec 15, 2009
Grant date	Sep 16, 2014
Priority date	—
Expiry date	Jul 13, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/0013
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sensor element of a gas sensor for determining gas components in gas mixtures includes a field effect transistor and/or a diode which has a current flow which changes upon contact with a gas to be detected, and which is positioned in a manner protected, by a protective cap, from direct access by the gas mixture. The protective cap has a heating element, a glass former, and/or an oxidation catalyst.

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