Magnetic angle sensor

US8384376B2 · kind B2 · utility

Assignee

• ASM Automation Sensorik Messtechnik GmbH · DE

Inventors

• Klaus Manfred Steinich · Straubing, DE
• Peter Wirth · Winsen, DE

Key dates

• Filing date: Jul 20, 2009
• Grant date: Feb 26, 2013
• Expiry date: Apr 13, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G01D2205/26
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In order to be able to measure over more than 360° with a magnetic angle sensor, it is proposed not to adjust the distance between the encoder magnet and the sensor element in addition to the rotation, e.g. by means of a thread, like in the prior art, but to maintain said distance constant, but instead to adjust a magnetic variator with respect to its axial distance from the sensor element, or also in transversal direction, which variator can be a flux conductor or also a secondary magnet.