| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve the problem wherein a sound wave transmitter which can oscillate low-frequency sound waves while withstanding the water pressure of the deep, and which can be made further compact and does not exist conventionally. <P>SOLUTION: The sound wave transmitter 1 includes: a box 2, having an opening and a bottom 2a facing the opening; a super-magnetostriction actuator 3 consisting of a super-magnetostriction element and a coil wound around it and is housed in the box 2 so that the direction of displacement matches the facing direction of the opening and bottom 2a of the box 2 with the proximal end being supported on the bottom 2a; a diaphragm 5 arranged in the opening and supported at the distal end of the super-magnetostriction actuator 3; and a flexible sheet 6 which connects the opening and the periphery of the diaphragm 5. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
