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Magnet-Based Angular Displacement Measuring System

Patent No. EP3250889 (titled "Magnet-Based Angular Displacement Measuring System") was filed by Fraba on Dec 9, 2015. The application was issued on Feb 13, 2019.

Patent Summary

A magnet-based rotational angle measuring system for detecting rotational movement of a drive shaft, comprising a drive shaft with a coaxial recess at its free end, an exciter unit fixed to the shaft via a recess extending through a fastening means, and a stationary sensor unit detecting the rotational movement of the shaft with the exciter unit interacting. The recess forms a hollow shaft portion with a radial air gap between the shaft and the fastening device, allowing magnetic fields induced in the shaft to be guided radially outward and concentrated for discharge. A first shielding body with a coaxial annular disc and a radially outer axial portion is provided to deflect and transmit magnetic fields radially outward, while a second shaft made of a magnetically non-conductive material can be connected coaxially to the drive shaft to provide additional shielding.

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CompanyOpposition DateRepresentative
STRAWMANNov 6, 2019NEYMEYR

Dossier Documents

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  • Date

    Description

EP3250889

FRABA
Application Number
EP15805540A
Filing Date
Dec 9, 2015
Status
Granted And Under Opposition
Jan 11, 2019
Publication Date
Feb 13, 2019
External Links
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