公开(公告)号：US12174020B2

公开(公告)日：2024-12-24

申请号：US17333474

申请日：2021-05-28

Applicant: The Trustees of Princeton University

Inventor： Wonjae Lee ,  Michael Romalis ,  Vito Giovanni Lucivero ,  Mark Limes ,  Elizabeth Foley ,  Tom Kornack

IPC: G01R33/26 ,  G01C17/28

Abstract: According to various embodiments, a method for reducing heading error in a magnetometer that uses Rb-87 atoms is disclosed. The method includes varying a direction and magnitude of a magnetic field at different spin polarization regimes. According to various embodiments, a magnetometer adapted for reduced heading error is disclosed. The magnetometer includes a multipass cell containing Rb-87 vapor, a pump laser operated in a pulse mode that is synchronous with a Larmor frequency, and two orthogonal probe lasers configured to rotate to vary a direction and magnitude of a magnetic field at different spin polarization regimes.

公开(公告)号：US20220221277A1

公开(公告)日：2022-07-14

申请号：US17333474

申请日：2021-05-28

Applicant: The Trustees of Princeton University

Inventor： Wonjae Lee ,  Michael Romalis ,  Vito Giovanni Lucivero ,  Mark Limes ,  Elizabeth Foley ,  Tom Kornack

IPC: G01C17/28 ,  G01R33/26

Abstract: According to various embodiments, a method for reducing heading error in a magnetometer that uses Rb-87 atoms is disclosed. The method includes varying a direction and magnitude of a magnetic field at different spin polarization regimes. According to various embodiments, a magnetometer adapted for reduced heading error is disclosed. The magnetometer includes a multipass cell containing Rb-87 vapor, a pump laser operated in a pulse mode that is synchronous with a Larmor frequency, and two orthogonal probe lasers configured to rotate to vary a direction and magnitude of a magnetic field at different spin polarization regimes.