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US 12,104,903 B2Granted
Spinning hall probe compass
AssigneeJefferson Science Associates, LLC
InventorsBogdan Wojtsekhowski, Guy Ron
Life of this patent
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Abstract
A high precision magnetic compass based on a Hall probe. The probe is oriented at an angle of 90 degrees to the rotation axis of the device. An oscillating component of the signal from the probe, synchronized with the device rotation, is transferred to the non-rotation frame and is used to align the axis of rotation to be parallel to the magnetic field. The device does not require prior calibration. It is insensitive to drift of the probe parameters and can provide an angle with precision equal to or better than a 0.05 degree.
Claims11
A spinning Hall probe compass, comprising:
- a housing including two ends and a housing cavity;
- a rotor retained within the housing cavity;
- a probe cavity within the rotor;
- a Hall probe within the rotor;
- and
- a few electrical wires for providing power to the Hall probe and for transferring electrical signals from the Hall probe to the housing.
3 more elements
Dependencies are inferred from the claim text.