Method of determining heading by turning an inertial device
US8782913B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2010 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Jul 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining a heading by means of an inertial device (1) providing measurements by means of at least one vibratory gyro (3), the method comprising the steps of: •positioning the inertial device in such a manner that the gyro extends close to a plane that is substantially horizontal; •orienting the inertial device successively in a predetermined number of orientations about a vertical axis, the predetermined number being greater than one; •for each orientation, adjusting the electric angle of the vibratory gyro to a predetermined value, the predetermined value of the electric angle being the same for all of the orientations of the inertial device, and taking a measurement; and •determining the heading from the measurements and an angle between the orientations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.