Methods and systems utilizing intermediate frequencies to control multiple coriolis gyroscopes
US7251900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2005 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Oct 26, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5776
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus, systems, and methods to control a plurality of gyroscopes utilizing intermediate frequencies are disclosed. The gyroscopes are configured to operate at the same pre-determined intermediate frequency. To accomplish this, the natural frequency of each gyroscope is determined, and a reference signal is added to the output signal of its respective gyroscope such that the sum of the natural frequency and the reference signal frequency equals the pre-determined intermediate frequency. The output signal from each gyroscope is transmitted to a common inertial data processor, and the inertial data processor outputs a directional signal. The directional signal includes a representation of angles from an X-axis, a Y-axis, and a Z-axis. Since each signal output by the gyroscopes has the same frequency, the loss of data is decreased and the accuracy of the data increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.