Apparatus and method for determining azimuth, pitch and roll
US5105548A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Dec 28, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/0206
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and method for determining the azimuth (heading), pitch and roll which include a magnetometer-type sensor providing signals measured in three axes relative to a reference frame, and coil elements wound around the magnetometer which selectively impose specific magnetic fields about the sensor. Three axes field components of the magnetic field are measured from the sensor with and without the selective energization of the magnetic coils and stored, from which the azimuth, pitch and roll are calculated. Furthermore, quadrant correction is applied such that a unique reading is produced for all angles through 360.degree. of azimuth, pitch or roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.