Apparatus for determining the location and distance to a concealed conductive structure
US4843324A · kind A · utility
13Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1988 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Apr 14, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/104
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for locating a buried structure in which a signal radiating from the structure is measured by its reception on the surface of the earth with the signal being attenuated by a selected amount and then measured by reception at varying distances above the earth with a lesser attenaution, whereby the depth of the object below ground is indicated as a function of signal level differences and attenuation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.