Metal detector and classifier with automatic compensation for soil magnetic minerals and sensor misalignment
US4628265A · kind A · utility
30Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1983 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Apr 22, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/107
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Metal detector for locating and classifying metal objects of different types in the ground or other surroundings. Automatic compensation is provided for signals produced by magnetic materials in the soil and by misalignment of the coils in the sensing head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.