Electromagnetic signal pickup apparatus and method for use of same
US6208265A · kind A · utility
12Cited by
14References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1997 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Oct 31, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electromagnetic pickup apparatus (46) and method for use of the same is disclosed. The apparatus (46) comprises a probe (60) that is insertable into a bore hole (64) or a trench (70) and a conductive backfill composition (62) that substantially surrounds the probe (60) having intimate contact with the probe (60) and the earth, thereby establishing a highly electrically conductive region (66) between the probe (60) and the earth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.