发明名称 Loudspeaker and microphone based on the principle of The Center of Percussion
摘要 A transducer of electrical oscillations to mechanical oscillations or mechanical oscillations to electrical oscillations, mainly a loudspeaker or a microphone, having in general an elongated oscillating member attached by joints to a surrounding structure in areas of points or lines of specific dynamic balance, like one end, center of mass, center of equal rotational inertia, center of percussion about a certain axis of rotation. At least one actuator is mounted in the area of these balancing points or lines. In an alternative to the preferred embodiment of the invention, the oscillating member is built to incorporate at least one cavity filled with air or a fluid different from air or having a certain degree of vacuum in it. In an alternative to the preferred embodiment of the invention the transducer is placed in a position to favor the retention of a heat exchanging fluid, other than magnetic fluid, inside the actuator. The incorporation of a coil other than circular targets the reduction of coil inductance to increase the transducer's performance. A symmetrical constructed assembly brings about improved physical stability to voice coils.
申请公布号 US2008085017(A1) 申请公布日期 2008.04.10
申请号 US20060328611 申请日期 2006.01.10
申请人 ILIES ANDREI;DRAGAN LUMINITA 发明人 ILIES ANDREI;DRAGAN LUMINITA
分类号 H04R25/00 主分类号 H04R25/00
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