Circuit and method for measuring distances

US7061230B2 · kind B2 · utility

Assignee

• MICRO-EPSILON-MESSTECHNIK GMBH & CO. KG · DE

Inventors

• Ulrich Kleine · Langenhagen, DE
• Falk Roewer · Magdeburg, DE
• Klaus Salzwedel · Magdeburg, DE
• Felix Mednikov · Ortenburg, DE
• Martin Sellen · Dordrecht, NL

Key dates

• Filing date: Mar 18, 2004
• Grant date: Jun 13, 2006
• Expiry date: May 1, 2024

Classification

• Technology area (CPC G): Physics
• CPC primary: G01D5/2013
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A circuit for measuring distances and which has at least two inputs (1, 2), at least one measuring coil (3), and at least one signal source, wherein at least two input signals (epos, eneg) are generated by means of the signal source, and the inputs (1, 2) are activatable by means of the input signals (epos, eneg). The input signals (epos, eneg) are applied, preferably preprocessed, to the inputs of the measuring coil (3). The circuit is designed for use where little space is available for the circuit, with the input signals (epos, eneg) being applied to a preferably timed SC network, which generates a measuring output signal that is dependent on temperature. A corresponding method is also described.