Level transmitter

US7584658B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Hans-Guenter Benner · Kriftel, DE
• Bernd Pauer · Eppstein, DE

Key dates

• Filing date: Sep 26, 2006
• Grant date: Sep 8, 2009
• Expiry date: Jul 3, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F23/36
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a level transmitter, having a lever arm which carries a float at one end and is received by a bracket at its other end, a support made of synthetic material, a bearing arranged on the support for the brackets and/or the lever arm, a level sensor arranged on the support and comprising a cover and a substrate, a resistor network arranged on this substrate and associated with a contact structure, with the electrical connection of the contact structure generating, with the resistor network and as a function of the pivotal position of a lever arm, an electrical signal indicating the level, and having at least one permanent magnet for actuating the contact structure. The bracket is made of an electrically conductive synthetic material and, at least in the region between the bearing and the cover, the support is made of an electrically conductive synthetic material.