Sensor element

US6462566B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Martin Schoefthaler · Reutlingen, DE
• Ralf Schellin · Reutlingen, DE
• Bernd Maihoefer · Simpsonville, US
• Franz Laermer · Stuttgart, DE
• Markus Lutz · Palo Alto, US
• Harald Emmerich · Tübingen, DE
• Joerg Kaienburg · Reutlingen, DE

Key dates

• Filing date: Aug 16, 2000
• Grant date: Oct 8, 2002
• Expiry date: Aug 16, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G01D21/02
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor element, in particular for determining an angle of rotation, has a detection medium whose position varies as a function of a change in a parameter to be measured, where the change in the position of the detection medium leads to a change in an analyzable signal of the sensor element which is influenced by the detection medium. The detection medium has at least one conductor loop carrying current which is exposed to an external magnetic field; the detection medium is rotationally movably mounted so that a rotational motion of the sensor element about an angle of rotation in the plane of the magnetic field is converted into a deflection of the detection medium perpendicular to the magnetic field.