Electrical geophysical exploration system with addressable current probes
US4467283A · kind A · utility
17Cited by
26References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1981 |
| Grant date | Aug 21, 1984 |
| Priority date | — |
| Expiry date | Sep 23, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A geophysical exploration system uses a single conductor cable connected to a current source, the cable having a number of earth probes coupled to it at spaced points with addressable switching units. The switching units are activated in sequence so that the probes inject current into the earth. At locations spaced from the probes the resistivity is measured and recorded for each injection. Resistivity measurements are compared with anomaly models to find a match of patterns, indicating the presence, size and location of an anomaly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.