Synchronous light-pulse atomic magnetometer system
US11294005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2020 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Jul 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/0094
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One example includes a magnetometer that includes a sensor cell comprising alkali metal vapor and a magnetic field generator system that generates predetermined AC magnetic fields through the sensor cell. The magnetometer also includes a laser system to provide optical pump and probe beams through the sensor cell in a pulsed manner to facilitate precession of the alkali metal vapor and to provide a detection beam corresponding to the optical probe beam exiting the sensor cell. The detection beam exhibits an optical property corresponding to a modified precession of the alkali metal vapor based on the predetermined AC magnetic fields and an external magnetic field. The magnetometer also includes a detection system to monitor the detection beam to detect the modified precession of the alkali metal vapor to calculate scalar and vector components of the external magnetic field based on the plurality of predetermined AC magnetic fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.