Method and device for measuring a magnetic field distribution of a magnet along a main surface of said magnet
AssigneeMagcam NV
InventorsKoen Vervaeke, Stephan Kliché
Life of this patent
Estimating the term…
Abstract
A method for determining a magnetic field of a magnet along a surface of the magnet, the method comprising: performing a relative movement between the surface of the magnet and a magnetic camera device; measuring the magnetic field by means of the magnetic camera device, to thereby obtain magnetic field measurements for the surface; wherein the relative movement is a continuous movement which is a combination of a relative translational movement and a relative rotational movement; and apparatus.
Claims16
A method for determining a magnetic field of a magnet along a disk surface of said magnet, the method comprising:
- performing a relative movement between said disk surface of said magnet and a magnetic camera device comprising a one-dimensional array of at least two magnetic field sensors arranged along a first direction;
- and
- measuring said magnetic field by means of said magnetic camera device, to thereby obtain magnetic field measurements for said disk surface of said magnet,
- wherein said relative movement is a continuous movement which is a combination of a relative translational movement parallel to said first direction and a relative rotational movement,
- wherein said relative translational movement is a movement along a radial direction of said disk surface of said magnet,
- wherein said relative rotational movement is a movement wherein said disk surface of said magnet rotates around an axis, said axis defining a second direction, and
- wherein said first direction and said second direction are perpendicular, resulting in a spiraling relative movement.
An apparatus for determining a magnetic field of a magnet along a disk surface of said magnet, the apparatus comprising:
- a means for performing a relative movement between said disk surface of said magnet and a magnetic camera device;
- and
- a magnetic camera device comprising a one-dimensional array of at least two magnetic field sensors arranged along a first direction, to thereby obtain magnetic field measurements for said disk surface,
- wherein said means for performing a relative movement is adapted for performing a relative movement which is a continuous movement which is a combination of a relative translational movement parallel to said first direction and a relative rotational movement,
- wherein said relative translational movement is a movement along a radial direction of said disk surface of said magnet,
- wherein said relative rotational movement is a movement wherein said disk surface of said magnet rotates around an axis, said axis defining a second direction, and
- wherein said first direction and said second direction are perpendicular, resulting in a spiraling relative movement.
Dependencies are inferred from the claim text.