Method and apparatus for detecting subsurface anomalies
US4835474A · kind A · utility
35Cited by
4References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 24, 1986 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Nov 24, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for collecting measurements on the surface of the earth in a form which can be processed to obtain enhanced resolution of subsurface resistivity anomalies in the earth's geologic structure. The system of the preferred embodiment utilizes many separately acquired voltage and current measurements on the earth's surface in a superposition analysis to "synthesize" the condition whereby the many separate measurements are acquired simultaneously to give useful advantages in improved depth of investigation commonly known as focused resistivity measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.