Remote calibration for acoustic transducer array

Details Remote calibration for acoustic transducer array Remote calibration for acoustic transducer array

G - Physics

01

V

324/58

G01V 13/00 (2006.01) G01V 1/20 (2006.01)

Patent

CA 1226621

REMOTE CALIBRATION OF ACOUSTIC TRANSDUCER ARRAY Abstract of the Disclosure An array of acousto-electric transducers 1,2, e.g. a hydrophore streamer, is calibrated by disconnecting the common ground wire 17, to which all the transducer shields 14 are connected, from ground and connecting it instead to a local oscillator 18. Test signals from the oscillator are capacitively coupled into each transducer via the inherent capacitances of the insulated lead troughs 15, 16 in the transducer shields 14.

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