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An Open Acoustic-Tube Method for Measuring Sound Velocity and Attenuation Constant of Marine Sediments

This paper describes a new method using an open acoustic-tube for in situ measurement of the sound velocity and the attenuation constant of marine sediments. The usefulness of the method is shown through basic experiments at about 3 kHz on a sediment model. A bimorph type piston transducer, resonating at a low frequency in spite of its small size, was devised for use in the experiments.