新型压电超声电机驱动的直辐射式扬声器

2013 IEEE 2nd Global Conference on Consumer Electronics (GCCE) Pub Date : 2013-11-14 DOI:10.1109/GCCE.2013.6664798

Hiroya Saito, K. Oishi, J. Ohga, H. Negishi, Ikuo Oohira, Kazuaki Maeda

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引用次数: 0

摘要

介绍了用压电超声电机代替传统电动力扬声器的新型直接辐射式扬声器结构。作者研究了两种结构。一种是由压电超声马达的连续旋转驱动。另一种由线性超声致动器驱动。它们对低频信号的辐射很有用，因为它在低频区表现出几乎平坦的相位频率特性。

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New direct-radiator loudspeaker driven by piezoelectric ultrasonic motors

Completely new direct-radiator loudspeaker constructions as alternative of the conventional electrodynamic loudspeakers by using piezoelectric ultrasonic motors are introduced. The authors examined two sorts of constructions. One is actuated by continuous revolution of piezoelectric ultrasonic motors. The other is driven by linear ultrasonic actuators. They are useful for radiation of rather low frequency signal because it shows almost flat phase frequency characteristics in low frequency region.

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2013 IEEE 2nd Global Conference on Consumer Electronics (GCCE)

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