Remote calibration of acoustic transducer array

Details Remote calibration of acoustic transducer array Remote calibration of acoustic transducer array

1984-10-17

1987-03-03

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Testing, monitoring, or calibrating

73 1DV, 310317, 310319, 310337, H04R 2900

Patent

active

046480781

ABSTRACT:
An array of acousto-electric transducers 1,2, e.g. a hydrophone 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 throughs 15, 16 in the transducer shields 14.

REFERENCES:
patent: 4233677 (1980-11-01), Brown et al.
patent: 4300218 (1981-11-01), Kruka et al.
patent: 4434648 (1984-03-01), Drost et al.

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