Magneto-inductive position sensor assemblies
AssigneeKSR IP Holdings, LLC
InventorLingmin Shao
Life of this patent
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Abstract
In accordance with one embodiment of the present disclosure, an inductive sensor assembly is provided. The inductive sensor assembly includes a housing formed of a magnetic plastic material and a sensor assembly having a transmitter coil and a receiving coil. The housing encapsulates the transmitter coil and the receiving coil. A movable target having a magnetic material is spaced apart from the housing and is configured to move along a predetermined trajectory relative to the housing. When the target is moved along the predetermined trajectory, the movement causes an area of low permeability in regions of the housing that is sensed by the receiving coil to determine the location of the target with respect to the housing.
Claims20
An inductive sensor assembly comprising:
- a housing formed of a magnetic plastic material;
- a sensor assembly having a transmitter coil and a receiving coil,
- wherein the housing encapsulates the transmitter coil and the receiving coil;
- and
- a movable target having a magnetic material and is spaced apart from the housing, the movable target is configured to move along a predetermined trajectory relative to the housing,
- wherein when the target is moved along the predetermined trajectory, the movement causes an area of low permeability in regions of the housing that is sensed by the receiving coil to determine a location of the target with respect to the housing.
An inductive sensor assembly comprising:
- a housing formed of a magnetic plastic material;
- a sensor assembly having:
- a circuit board having:
- a transmitter coil having an outer diameter;
- and
- a receiving coil positioned within the outer diameter of the transmitter coil,
- wherein the housing encapsulates the circuit board, the transmitter coil and the receiving coil;
- and
- a movable target formed at least partially from a magnetic material and is spaced apart from the housing, the movable target is configured to move along a predetermined trajectory relative to the housing,
- wherein when the target is moved along the predetermined trajectory, the movement causes an area of low permeability in regions of the housing that is sensed by the receiving coil to determine a location of the target with respect to the housing.
An inductive sensor assembly comprising:
- a housing formed of a magnetic plastic material;
- a sensor assembly having:
- a flexible circuit board having:
- a transmitter coil having an outer diameter;
- and
- a two-part receiving coil positioned within the outer diameter of the transmitter coil,
- wherein the housing encapsulates the flexible circuit board, the transmitter coil and the two-part receiving coil;
- and
- a movable target formed from at least partially from a magnetic material and is spaced apart from the housing, the movable target is configured to move along a predetermined trajectory relative to the housing, the circuit board and the housing are shaped similar to the predetermined trajectory of the movable target,
- wherein when the target is moved along the predetermined trajectory, the movement causes an area of low permeability in regions of the housing that is sensed by the two-part receiving coil to determine a location of the target with respect to the housing.
Dependencies are inferred from the claim text.