发明授权
- 专利标题: Underwater low-frequency ultrasonic wave transmitter
- 专利标题(中): 水下低频超声波发射机
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申请号: US901693申请日: 1986-08-29
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公开(公告)号: US4706230A公开(公告)日: 1987-11-10
- 发明人: Takeshi Inoue , Takatoshi Nada
- 申请人: Takeshi Inoue , Takatoshi Nada
- 申请人地址: JPX Tokyo
- 专利权人: NEC Corporation
- 当前专利权人: NEC Corporation
- 当前专利权人地址: JPX Tokyo
- 主分类号: G10K9/12
- IPC分类号: G10K9/12 ; H01V7/00
摘要:
Non-active columnar members are disposed on both sides of an active columnar member consisting of a piezoelectric ceramic material or a magnetically strainable material. Levers are connected to the active and non-active columnar members via first and second hinges. Convex shells are connected to the levers via third hinges. The displacement of the active columnar member is enlarged via the lever action, thereby enabling a miniaturized ultrasonic wave transmitter having high power capability.