Self-calibrating nuclear magnetic resonance gyro
US7728587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2007 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Nov 10, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C25/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The method and apparatus in one embodiment may have: a gyro housing containing a bias field; a bias field that generates a stable axial magnetic field; Xenon or other gas contained within at least a portion of the axial magnetic field, Xenon or other gas nuclear spins precessing at a constant angular rate with respect to the gyro housing in response to the axial magnetic field; wherein reversing a polarity of the bias field reverses a polarity of the magnetic field and a polarity of the precession of the Xenon or other gas nuclear spin, and wherein a reversing of the polarity of the gyro scalefactor thereby results without reversing a polarity of the gyro bias.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.