Gas sensor

US6463789B2 · kind B2 · utility

Assignee

• Dornier GmbH · DE

Inventors

• Ralf Moos · Friedrichshafen, DE
• Thomas Birkhofer · Immenstadt im Allgäu, DE
• Aleksandar Knezevic · Eitorf, DE
• Ralf Mueller · Aulendorf, DE
• Carsten Plog · Markdorf, DE

Key dates

• Filing date: Mar 9, 2001
• Grant date: Oct 15, 2002
• Expiry date: Mar 9, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/123
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A gas sensor, comprises a substrate, a sensor unit including a functional layer and an electrode structure, and an electric heating and/or temperature measuring arrangement. An electrically conductive shielding structure is provided between the sensor unit and the electric heating arrangement in order to shield the measurement process at the sensor unit from interferences owing to the heating process, thereby reducing or preventing the effects of electrical fields caused by voltages applied to the heating arrangement from altering or disrupting the measurement process.