Potentiometric probe

US11585780B2 · kind B2 · utility

Assignee

• Endress+Hauser Conducta GmbH+Co. KG · DE

Inventors

• Michael Hanko · Dresden, DE
• Thomas Wilhelm · Zürich, CH
• Matthäus Speck · Garbisdorf, DE
• Detlev Wittmer · Maulbronn, DE
• Manfred Jagiella · Jeffery Road, DE

Key dates

• Filing date: Jun 15, 2020
• Grant date: Feb 21, 2023
• Expiry date: May 13, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/40
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present disclosure relates to a potentiometric probe for measuring a measured variable that represents an ion concentration in a measuring medium, including a probe base including a sensor circuit, and two electrochemical half-cells arranged such that one of the half-cells surrounds at least one portion of the other half-cell, wherein at least one of the half-cells is configured as a module which is connected to the probe base via a mechanical and electrical interface. In another embodiment, one of the half-cells is a measuring half-cell including an ion-selective membrane and a terminal lead which electrically contacts the ion-selective membrane. The other half-cell is a reference half-cell, wherein the measuring half-cell and/or the reference half-cell are each configured as a module which is connected to the probe base via a mechanical and electrical interface.