Buried object detector
US9151862B2 · kind B2 · utility
0Cited by
21References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 4, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Jun 12, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/107
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A buried object detector comprising: a loop antenna and an RF source, the RF source coupled to the loop antenna and arranged to feed the loop antenna with an RF signal, the detector further comprising a detector circuit coupled to the loop antenna and arranged to detect changes in the quality factor of a resonant circuit formed by the loop antenna, wherein the loop antenna is arranged to magnetically couple with a buried object, thereby reducing the quality factor of the resonant circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.