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Underwater tunable organ-pipe sound source
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10.1121/1.2751268
/content/asa/journal/jasa/122/2/10.1121/1.2751268
http://aip.metastore.ingenta.com/content/asa/journal/jasa/122/2/10.1121/1.2751268

Figures

Image of FIG. 1.
FIG. 1.

The control system for QFA filter.

Image of FIG. 2.
FIG. 2.

The response of tunable Helmholtz resonator to fast frequency sweep from 200 to for .

Image of FIG. 3.
FIG. 3.

The response of tunable Helmholtz resonator to instant frequency hop from 200 to .

Image of FIG. 4.
FIG. 4.

Draft drawing of the tuning mechanism of organ pipe sound projector, the linear actuator is not shown.

Image of FIG. 5.
FIG. 5.

Resonant organ pipe equivalent circuit.

Image of FIG. 6.
FIG. 6.

The sound pressure level of a tunable resonator tube for different positions of a movable sleeve; the difference between any two displacements is .

Image of FIG. 7.
FIG. 7.

(a) The transient response for a frequency hop from 200 to at time moment . (b) The transient response of a tunable organ pipe for a frequency hop from 200 to at time moment , large time scale. (c) The tunable organ pipe frequency sweeping from 200 to for .

Image of FIG. 8.
FIG. 8.

Low frequency deepwater sound source in the SCRIPPS testing pool.

Image of FIG. 9.
FIG. 9.

The efficiency of sound source vs frequency in an isotropic approximation.

Image of FIG. 10.
FIG. 10.

Spectrogram for 135, 10, and sweep over bandwidth.

Image of FIG. 11.
FIG. 11.

(Color online) Correlation function for 135, 10, and , frequency sweep. Seneca Lake Sonar Test Facility, 3 May 2004.

Tables

Generic image for table
TABLE I.

Piezoelectric-driver and resonator-tube parameters.

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/content/asa/journal/jasa/122/2/10.1121/1.2751268
2007-08-01
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Underwater tunable organ-pipe sound source
http://aip.metastore.ingenta.com/content/asa/journal/jasa/122/2/10.1121/1.2751268
10.1121/1.2751268
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