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    • 7. 发明授权
    • Piezoelectric transducers and acoustic antennas which can be immersed to
a great depth
    • 压电换能器和声纳天线可以沉浸在很大的深度
    • US4151437A
    • 1979-04-24
    • US818960
    • 1977-07-25
    • Bernard Tocquet
    • Bernard Tocquet
    • B06B1/06H01L41/10
    • B06B1/0618
    • Piezoelectric transducers and antennas comprising a plurality of identical transducers arranged coaxially, each transducer comprising a ring and a plurality of piezoelectric motor elements arranged radially against the inner wall of the ring. The rings form an envelope which is closed by two covers and the envelope encloses an axial cylindrical channel containing a piston. The inside of the envelope contains a solid material which is elastomeric or rigid and is separated from the inner walls of the envelope by a small clearance which communicates with the end of the cylinder. An application is the construction of acoustic antennas intended to be immersed to great depths.
    • 压电换能器和包括同轴布置的多个相同换能器的天线,每个换能器包括环和径向地布置在环的内壁上的多个压电马达元件。 环形成由两个盖封闭的信封,并且信封包围包含活塞的轴向圆柱形通道。 信封的内部包含弹性或刚性的固体材料,并且通过与气缸的端部连通的小间隙与壳体的内壁分离。 一种应用是旨在沉入大深度的声学天线的构造。