| 摘要 |
PURPOSE: By using a sound wave directly fired from seafloor it geographical of seafloor, the minor for the topography of seafloor and topographic change measurement or the mounting -type observation system collect the geometrical information. CONSTITUTION: An anchor of the porosity concrete material comprises a plurality of holders and fixed protrusion. The gripper(120) comprises a pair of binding parts, electromagnet, and the magnetic grate. The housing(130) comprises the Buoyancy tank, and the guide of the rail shape and cover. The sound wave generation means(140) fires the sound wave of the constant frequency. The controller(150) controls the sound wave generation means. Supplies the electricity of being necessary to the battery(160) is gripper, and the sound wave generation means and controller. The flux sensor senses the flux of the ocean current.
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