Method and assembly for determining the rotational speed of ferromagnetic components
AssigneeSiemens Aktiengesellschaft
InventorsCarl Udo Maier, Jochen Ostermaier
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Abstract
A method for determining the rotational speed of ferromagnetic disks via the detection of permeability changes in dependence on radially directed forces in the disk includes orienting, for the measurement, at least one contactless-operating magneto-elastic sensor toward a face of the ferromagnetic disk to be measured, for detecting permeability changes in the case of occurring radial forces, and for calculating the radial forces from the permeability changes. The primary use is in the field of contactless determining data of rotating components.
Claims10
1-10. (canceled)
A method for determining a rotational speed of a ferromagnetic component, comprising:
- aligning at least one contactless-operating magnetoelastic sensor toward a face of the ferromagnetic component parallel with an axis of rotation of the ferromagnetic component,
- determining radial forces generated by a rotation of the ferromagnetic component by measuring with the at least one magnetoelastic sensor permeability changes in the ferromagnetic component, and
- calculating a rotational speed of the ferromagnetic component from a magnitude of the determined radial forces.
A sensor arrangement for detecting stress in a rotating, ferromagnetic component, comprising:
- at least one magnetoelastic sensor aligned toward a face of the ferromagnetic component parallel with an axis of rotation of the ferromagnetic component, wherein the sensor arrangement is configured to
- determine radial forces generated by a rotation of the ferromagnetic component by measuring with the at least one magnetoelastic sensor permeability changes in the ferromagnetic component, and
- calculate a rotational speed of the ferromagnetic component from a magnitude of the determined radial forces.
Dependencies are inferred from the claim text.