Patent ID: 11874343
Assignee: TRUSTEES OF BOSTON UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. A gradiometer comprising:
a platform including a moveable segment;
a pedestal mechanically coupling the moveable segment to a substrate such that the moveable segment deflects around the pedestal, the substrate being fixed;
a first magnet attached to a first side of the moveable segment to deflect around the pedestal in response to a magnetic force from an external magnetic field;
a second magnet attached to a second side of the moveable segment, the second side being opposite the first side of the moveable segment with respect to the pedestal, wherein the second magnet is positioned such that a polar orientation of the second magnet with respect to the moveable segment is opposite a polar orientation of the first magnet with respect to the moveable segment; and
a sensing element configured to measure a deflection of the first magnet along an axis, wherein the gradiometer directly measures a gradient of the external magnetic field based on the deflection of the first magnet with respect to the sensing element.