Apparatus and method for locating subsurface objects in conductive soils by measurements of magnetic fields by induced currents with an array of multiple receivers
US6525539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Mar 15, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/15
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for locating subsurface objects using an induction array system is presented. The system uses a movable array that contains two or more spatially separated receivers and one or more spatially separated transmitters. The spatial separation permits the array to detect objects at varying depths with a single pass of the device over the surface area under investigation. If multiple transmitters are used, then they may either be operated simultaneously at different frequencies or sequentially at the same frequency. The spacing between receiver and transmitter elements in the induction array may be uniform or non-uniform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.