Electromagnetic signal pickup device
US5959548A · kind A · utility
25Cited by
18References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Oct 31, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/13
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electromagnetic pickup device (64) for receiving electromagnetic signals (62) is disclosed that comprises an H-field probe (68) having an end (78) the is insertable into the earth (16) for receiving the H-field component of the electromagnetic signal (62) and a plurality of E-field probes (66) that are radially disposed about the H-field probe (68) and electrically isolated from the H-field probe (68), each having an end (76) that is insertable into the earth (16) for receiving the E-field component of the electromagnetic signal (62).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.