Phase-space filtering in thermal beam inertial sensors
US12276503B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2021 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Oct 21, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device comprises thermal atomic source(s), atom interference lasers, and additional laser beam(s). The thermal atomic source(s) provide atomic beam(s). The atom interference lasers are disposed to provide interrogation laser beams that interrogate the atomic beam(s) to assist in generating atom interference. The interrogation laser beams are configured so as to enable a first speed selectivity and/or angle selectivity of a set of atoms used in the atom interference by restricting the set of atoms. The additional laser beam(s) are configured in such a way that, combined with the speed and/or the angle selectivity of the atom interference lasers, achieve a second speed selectivity and/or angle selectivity of the set of atoms that contribute to a final detected interference signal by restricting the set of atoms to a second speed-angle phase space, where the first speed-angle phase space and the second speed-angle phase space intersect to enhance signal stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.