Probe for an electrochemical oxygen measurement pickup

US4127463A · kind A · utility

Assignee

• Brown, Boveri & Cie AG · DE

Inventors

• Franz-Josef Rohr · Weinheim, DE
• Hubert Holick · Lampertheim, DE

Key dates

• Filing date: Jul 15, 1977
• Grant date: Nov 28, 1978
• Expiry date: Jul 15, 1997

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/4075
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A probe for an electrochemical oxygen measurement pickup having an oxygen ion-conducting solid electrolyte with electrodes and electrical contact points connected by conductors to the electrodes, in which the probe has an electrochemically active region provided with the electrodes and an electrochemically passive region provided with the contact points as well as with their electrical connections to the electrodes. This minimizes or avoids false readings resulting from temperature gradient and changes in chemical equilibrium.