Automatic magnetic compass correction
US4091543A · kind A · utility
50Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1976 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Jun 17, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C17/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method and apparatus for providing automatic correction of deviation errors in a magnetic compass. Data representing deviation corrections for respective compass headings are stored in memory and in response to a digital signal from the magnetic compass representing an indicated heading, the corresponding correction is provided from memory to yield a output signal representing actual heading and corrected for deviation error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.