Apparatus and method for measuring magnetic properties of a ferromagnetic endless belt
AssigneeDr. Brockhaus Messtechnik GmbH & Co. KG
InventorsStefan Siebert, Piotr Klimczyk
Life of this patent
Estimating the term…
Abstract
An apparatus for determining magnetic properties of a portion of a magnetizable endless belt. The apparatus includes a primary coil for generating a magnetic field. The windings of the primary coil are wound around the endless belt. A secondary coil measures the magnetic flux density. A slotted yoke guides the magnetic flux. The endless belt extends through slots in the yoke. First measuring devices measure the magnetic field in a width portion parallel to the endless belt. Second measuring devices measure the magnetic field in the width portion parallel to the endless belt.
Claims9
An apparatus for determining magnetic properties of a magnetizable endless belt, comprising:
- a primary coil for generating a magnetic field, wherein windings of the primary coil are wound around the endless belt, wherein the magnetic field generated by the primary coil is parallel to the endless belt, and
- a secondary coil for measuring a magnetic flux density, wherein windings of the secondary coil are wound around the endless belt, and
- a slotted yoke for guiding the magnetic flux, wherein the endless belt extends through slots in the yoke,
- a first plurality of measuring devices for measuring the magnetic field in a respective width portion parallel to the endless belt, and
- a second plurality of measuring devices for measuring a magnetic flux in the respective width portion of the endless belt,
- wherein the primary coil is enclosed within the slotted yoke and the secondary coil and the first plurality of measurement devices for measuring the magnetic field are enclosed within the primary coil.
A method for determining magnetic properties of a width portion of a magnetizable endless belt, comprising:
- generating a magnetic field, which is parallel to the endless belt and spans the width of the endless belt, wherein the magnetic field is generated by a primary coil, windings of the primary coil being wound around the endless belt, and
- determining a total magnetic field generated by use of a secondary coil, windings of the secondary coil being wound around the endless belt, and
- determining by a first plurality of measuring devices the magnetic field in the width portion parallel to the surface of the endless belt, and
- determining by a second plurality of measuring devices a magnetic flux which passes from the width portion of the endless belt into a slotted yoke, and
- determining a magnetic property of the width portion of the endless belt based on the determined total magnetic field and a magnetic flux density in the width portion and the magnetic field of the width portion,
- wherein the magnetic flux density is measured by the secondary coil;
- wherein the primary coil is enclosed within the slotted yoke and the secondary coil and the first plurality of measurement devices for measuring the magnetic field are enclosed within the primary coil.
Dependencies are inferred from the claim text.