Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1995-11-01
1997-07-29
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367174, H04R 144
Patent
active
056527357
ABSTRACT:
Acoustic source assembly for offshore seismic exploration, comprising at least one active vibration transducer (1) adapted to be excited by a sweep signal within a desired frequency range. At least one further and passive vibration transducer (2,3) is positioned at such small spacing (B) between the transducers that interaction therebetween provides for a relative enhancement of the frequency response of the whole source assembly at low frequencies.
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Haugland Tor-Arvid
Johansen Svein Egil
Snook Thomas Clive
Arnold Gordon T.
Petroleum Geo Services AS
Pihulic Daniel T.
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