Method and apparatus for measuring the oxygen potential of a heat-treatment furnance

US5352344A · kind A · utility

Assignee

• Ipsen Industries International GmbH · DE

Inventors

• Werner Gohring · Kleve, DE
• Maz Roggatz · Goch, DE
• Bernd Edenhofer · Kleve, DE

Key dates

• Filing date: Dec 8, 1992
• Grant date: Oct 4, 1994
• Expiry date: Dec 8, 2012

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/4115
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A probe for measuring oxygen potential, especially to determine the carboransfer properties of a furnace atmosphere containing the gases H.sub.2, CO, and CH.sub.4, with the probe having an oxygen ion conducting, solid measuring electrolyte with a contact electrode in the furnace atmosphere and a contact electrode in a reference medium that has a known oxygen concentration. To improve the accuracy of the measurement, an oxygen ion conductive compensation electrolyte in the form of a detachable solid body is connected between the contact electrode in the furnace atmosphere and the solid measuring electrolyte.