Patent · US Active

Noise reduction systems and methods for a geophysical survey cable

US8587316B2 · kind B2 · utility

3Cited by

27References

20Claims

0Family size

Assignee

PGS Geophysical AS · NO

Inventors

Robert Juhasz · Stockholm, SE
Mattias Südow · Solna, SE
Joel Skogman · Järfälla, SE
Panagiotis Verras · Kirkliston, GB
Peter Lindqvist · Stuvsta-Snättringe, SE

Key dates

Filing date	Dec 8, 2011
Grant date	Nov 19, 2013
Priority date	—
Expiry date	May 29, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01V2003/084
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A disclosed geophysical survey cable includes a signal amplifier coupled between two electrodes spaced apart along the length of the geophysical survey cable (the electrodes being coupled to the signal amplifier by a first conductor pair), and a noise amplifier coupled to a second conductor pair positioned substantially parallel to the first conductor pair. The geophysical survey cable further includes a combiner that combines a noise signal provided by the noise amplifier with a sensor signal provided by the signal amplifier to provide a sensor signal with a reduced noise component.

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