Measuring device for determining an operating state variable of a rotating structural element, in particular a bearing

Patent metadata

Field	Value
Publication number	US-9103846-B2
Application number	US-201213367496-A
Country	US
Kind code	B2
Filing date	Feb 7, 2012
Priority date	Feb 7, 2011
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

A measuring device for determining an operating state variable of a rotating structural element, in particular a bearing, which has a plurality of components. Specifically, the measuring device has a permanent magnet, an encoder ring for manipulating the magnetic field which is generated by the permanent magnet, a magnetic field sensor, a radio unit for transmitting measurement signals from the magnetic field sensor to an evaluation unit, and an energy converter unit for converting rotation energy into electrical energy. The encoder ring is produced from a ferromagnetic and non-premagnetized material.

First claim

What is claimed:

1. A bearing, comprising:
an external ring;
an internal ring;
at least one rolling body located between the external and internal rings in a radial direction orthogonal to an axial direction; and,
a measuring device for determining an operating state variable of the bearing, the measuring device including:
a permanent magnet;
an encoder ring for manipulating a magnetic field which is generated by the permanent magnet;
a magnetic field sensor;
a radio…

Assignees

• Mock Christian
• Heim Jens
• Koeniger Florian
• Schaeffler Technologies Ag

Inventors

• Mock Christian
• Heim Jens
• Koeniger Florian

Classifications

• F16C41/008

  Mechanical Engineering · mapped topic

• F16C41/007

  Mechanical Engineering · mapped topic

• F16C41/004

  Mechanical Engineering · mapped topic

• G01P3/443 Primary

  Physics · mapped topic

• F16C2300/02

  Mechanical Engineering · mapped topic