Patent · US Active

Cable-type electromagnetic receiver system for subsurface exploration

US7602191B2 · kind B2 · utility

20Cited by

3References

18Claims

0Family size

Assignee

PGS Geophysical AS · NO

Inventor

Per Anders Davidsson · Spånga, SE

Key dates

Filing date	Jun 29, 2007
Grant date	Oct 13, 2009
Priority date	—
Expiry date	Jul 26, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01V3/083
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A marine electromagnetic survey cable includes a reference electrode extending substantially along the entire length of the cable. A plurality of spaced apart measuring electrodes is disposed along the cable and each is electrically insulated from the reference electrode. A voltage measuring is circuit functionally coupled between each measuring electrode and the reference electrode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.