Probe unit

US10352754B2 · kind B2 · utility

Assignee

• Endress+Hauser SE+Co. KG · DE

Inventors

• Robert Schmidt · Schopfheim, DE
• Andreas Krumbholz · Maulburg, DE
• Armin Wernet · Rheinfelden (Baden), DE
• Kaj Uppenkamp · Wehr, DE

Key dates

• Filing date: Nov 9, 2015
• Grant date: Jul 16, 2019
• Expiry date: Jun 9, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/07
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A probe unit having a coaxial structure and including a probe electrode, a guard electrode and a contacting module arranged on a section of the probe electrode, which contacting module including an insulating sleeve, a flexible circuit board with a first conduction path for the electrical contacting of the probe electrode and a second conduction path for the electrical contacting of the guard electrode, and a module housing, wherein a first contact plate is provided that electrically contacts the first conduction path, the module housing including a second contact plate that electrically contacts the second conduction path, wherein the module housing has a pot-shaped geometry with a cylindrical wall, which wall substantially surrounds, protects and/or electromagnetically shields at least the probe electrode in the region in which the contacting module is arranged, at least a part of the insulating sleeve, and at least sections of the circuit board.