Device for the simultaneous application of electrical signals and measurement of the electrical potential in a sample

US7106076B2 · kind B2 · utility

Assignee

• Forschungszentrum Jülich GmbH · DE

Inventors

• Axel Tillmann · Aldenhoven, DE
• Andreas Kemna · Goleta, US
• Egon Zimmermann · Eschweiler, DE
• Walter Glaas · Elsdorf, DE
• Arre Verweerd · Aachen, DE

Key dates

• Filing date: Aug 22, 2003
• Grant date: Sep 12, 2006
• Expiry date: Aug 22, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N33/24
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An electrode, in the form of a spike, for insertion into a sample, has a large-area jacket adapted for applying an excitation current to the sample and a small-area tip electrically decoupled from the jacket, at which a potential measurement is made.