Electrochemical measuring cell

US4412904A · kind A · utility

Assignee

• Brown, Boveri & Cie AG · DE

Inventors

• Franz-Josef Rohr · Weinheim, DE
• Andreas Reich · Buxheim, DE

Key dates

• Filing date: Jul 15, 1982
• Grant date: Nov 1, 1983
• Expiry date: Jul 15, 2002

Classification

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

Abstract

An electrochemical measuring cell, in particular for the determination of the oxygen content in gases, which has an ion-conducting, solid electrolyte. The latter is provided with at least one electrode in the form of a porous layer containing electron-conducting, ceramic oxide material. For the improvement of the electron-conductivity of the electrode there is embedded in the layer metallic material such as a metal wire whose electron-conductivity is greater than the electron-conductivity of the oxide material. Only as much metallic material need be added to increase the electron-conductivity of the electrode sufficiently to a predetermined value.