Time domain method and apparatus for metal detectors
US8749240B1 · kind B1 · utility
4Cited by
0References
24Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 19, 2011 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Jul 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention provides a pulse induction metal detector where a coil transmits a pulsed magnetic field to energize metal objects that are often buried or hidden in a matrix (ground) containing ferromagnetic minerals. A difficult challenge is to detect and identify the metal object while ignoring the ferromagnetic matrix. Techniques are presented for achieving this.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.