Magnetic field sensor and method for mounting a magnet
AssigneeZF Friedrichshafen AG
InventorsJulian Stratmann, Michael Klank, Stefan Krahn
Life of this patent
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Abstract
A magnetic field sensor has a magnet (M1) that produces a magnetic field with a magnetic field axis (f), has a magnet axis (a) and is held in a component (4) that can move about at least one axis and has a component axis (b). Also a method for mounting a magnet (M1) of a magnetic field sensor. The magnet (M1) is held in the component (4) in such a manner that the magnetic field axis (f) coincides, as closely as possible, with the component axis (b). A deviation of the magnetic field axis (f) from the magnet axis (a) is measured, and the angle of deviation (α) is corrected during the mounting of the magnet (M1) in the component (4).
Claims14
A magnetic field sensor with a magnet that produces a magnetic field having a magnetic field axis,
- the magnet having a magnet axis, and the magnet being positioned in a receiving opening of a component that is movable about at least one axis,
- the component having a component axis, and
- during installation of the magnet, a position of the magnet, relative to the receiving opening of the component, being adjusted by a mounting device so that the magnetic field axis coincides with the component axis, and, thereafter, the adjusted position of the magnet, relative to the receiving opening of the component, being secured by an adhesive so as to retain the magnetic field axis coincident with the component axis.
A magnetic field sensor with a magnet that produces a magnetic field having a magnetic field axis,
- the magnet having a magnet axis and being held in a component that is movable about at least one axis,
- the component having a component axis, and
- the magnet being held in the component in such a manner that the magnetic field axis substantially coincides with the component axis,
- wherein the magnet axis of the magnet coincides with the component axis and compensation bodies, consisting of a magnetically conductive material, are arranged in a circumferential area of the magnet.
A method for mounting a magnet of a magnetic field sensor according that produces a magnetic field having a magnetic field axis, the magnet having a magnet axis and being held in a component that is movable about at least one axis, the component having a component axis, and the magnet being held in the component in such a manner that the magnetic field axis substantially coincides with the component axis, the method comprising:
- procuring a commercially available magnet,
- checking the magnet for manufacture-related deviations,
- measuring any deviation of the magnetic field axis from the magnet axis,
- determining an angle of deviation with a sensor,
- holding the magnet with a mounting device,
- positioning the magnet in the component, and, at a same time, correcting the angle of deviation of the magnet with the mounting device so that the magnetic field axis coincides with the component axis, and
- adhesively securing the magnet, relative to the component, in the adjusted position such that the magnetic field axis coincides with the component axis following adhesively securing the magnet to the component.
Dependencies are inferred from the claim text.