Underwater sound wave transmitter |
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| 申请号 | JP9633584 | 申请日 | 1984-05-16 | 公开(公告)号 | JPS60241399A | 公开(公告)日 | 1985-11-30 |
| 申请人 | Nec Corp; | 发明人 | SUGIUCHI KATSUMI; | ||||
| 摘要 | PURPOSE:To produce a large acoustic output with simple constitution by using a laminated ceramic as an object for driving the vibration and connecting it to a vibration displacement magnification device. CONSTITUTION:A vibration drive element 8 made of thin film-like ceramic materials is connected to one edge of a vibration displacement magnification device 9 on the amplitude surface where the vibration displacement is maximized. The device 9 is constituted of a metallic vibration body 10 made of fine bars or thin sheet pieces and a vibration transmission support mechanism 11. Insulating oils 14 for balancing pressure are filled in a sound wave transmitter case 15 for containing said vibration body 10 and mechanism 11 in order to prevent breakage of each connection surface caused by hydraulic pressure applied to a sound wave radiation body 2. With this constitutuion, when the element 9 is driven by low frequency, the sound wave whose vibration displacement is mangified to the prescribed vibration displacement magnification ratio is radiated from the radiator 2, and efficiently emitted underwater through a diaphragm 13. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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