Electrochemical gas sensor with diamond-like carbon electrodes

US6607642B1 · kind B1 · utility

Assignee

• Drägerwerk Aktiengesellschaft · DE

Inventors

• Herbert Kiesele · Lübeck, DE
• Frank Mett · Lübeck, DE
• Peter Tschuncky · Lübeck, DE

Key dates

• Filing date: Aug 9, 2000
• Grant date: Aug 19, 2003
• Expiry date: Oct 28, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/308
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An electrochemical gas sensor (1) is disclosed with a plurality of electrodes (2, 3, 4). The sensor has substantially reduced cross sensitivity with respect to interfering gases. At least the measuring electrode (2) is provided as a thin layer of diamond-like carbon (DLC, diamond-like carbon) on the gas-permeable membrane (9).