Oxygen sensitive resistance material

US6319429A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Ralf Moos · Friedrichshafen, DE
• Wolfgang Menesklou · Welzheim, DE
• Hans-Jürgen Schreiner · Lauf an der Pegnitz, DE
• Karl-Heinz Hardtl · Hagenbach, DE

Key dates

• Filing date: Apr 6, 2000
• Grant date: Nov 20, 2001
• Expiry date: Apr 6, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/209163
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Oxygen sensitive resistance materials for use with oxygen sensors, in particular .lambda. probes are described. These materials are based on the fact that with complex metal oxides it is possible--by adding suitable doping substances--to achieve a negligible temperature dependence of the electric resistance of these materials for different oxygen partial pressures and to preset it to a desired partial pressure value.