Arrangement for stabilizing a gas-reference electrode

US4808292A · kind A · utility

Inventors

• Manfred Kessler · Dortmund, DE
• Jens Hoper · Dortmund, DE

Key dates

• Filing date: Oct 24, 1986
• Grant date: Feb 28, 1989
• Expiry date: Oct 24, 2006

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/302
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a catheter or hollow needle type electrolytic measuring device having a measuring electrode and a gas reference electrode, an arrangement for stabilizing the operation of the gas reference electrode includes a lipophile membrane coating a part of the gas reference electrode which communicates with an electrolyte containing space. A source of gas, preferably in the form of another electrode which release gas at a constant rate from the electrolyte, is arranged in the space opposite the gas reference electrode.