Sensor for determining the concentration of sulphur compounds in a liquid

US6716336B2 · kind B2 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Armin Hürland · Friedrichshafen, DE
• Roland Kemmler · Stuttgart, DE
• Ralf Moos · Friedrichshafen, DE
• Carsten Plog · Markdorf, DE
• Thomas Stengel · Friedrichshafen, DE
• Dirk Voigtlander · Ditzingen, DE

Key dates

• Filing date: Sep 17, 2001
• Grant date: Apr 6, 2004
• Expiry date: Oct 26, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N33/287
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor for determining the concentration of sulphur compounds in a liquid includes: a working electrode in contact with the liquid to be analyzed; a referenced electrode insulated from the liquid to be analyzed; a liquid-impermeable membrane located between the working electrode and the reference electrode and permeable to an ion that may form a chemical compound with the sulphur compounds in the liquid to be analyzed; and a reference material in contact with the reference electrode or forms the reference electrode.