Electromagnetic tracker (AC) with extended range and distortion compensation capabilities employing multiple transmitters
US9459124B2 · kind B2 · utility
4Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Aug 6, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/208
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An alternating current (AC) electromagnetic tracker system with increased operational range and an ability to compensate for electromagnetic distortion in the local operating environment. The system uses multiple “N” sources/transmitters located at known positions in a common reference frame. A sensor receives the generated signal of each of the sources and a processor computes a position and orientation of the sensor from each. The processor further uses the known relative position and orientation between the N sources to compensate for distortion in the operating environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.