Patent · US Active

Signal generator for electromagnetic surveying that produces a signal having an analog continuous waveform

US8072222B2 · kind B2 · utility

1Cited by

6References

18Claims

0Family size

Assignee

WESTERNGECO L.L.C. · US

Inventors

Leendert Combee · Kleppestø, NO
Michael Malling · Oslo, NO
Phil Heelan · Asker, NO

Key dates

Filing date	Mar 31, 2008
Grant date	Dec 6, 2011
Priority date	—
Expiry date	Sep 7, 2030

Classification

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

Abstract

To perform an electromagnetic (EM) surveying of a subterranean structure, a signal generator produces a signal having an analog continuous waveform without steps in the waveform. Producing the signal is in response to an indication specifying a characteristic of the signal. An antenna is responsive to the signal having the analog continuous waveform to emit an EM field to produce the EM surveying of the subterranean structure.

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