Date

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[P2-83]
14:00 ~ 15:30
Title:Wave Form of Converged Sound by Crossed-Mirror Array
Ryosuke Kujime, Hironori Nakamura, Shiro Suyama (The Univ. of Tokushima, Japan), and Hirotsugu Yamamoto (Utsunomiya Univ., Japan)
Abstract: We clarify waveform of sound converged by crossed-mirror array. When sound wave was converged by CMA, only amplitude was changed. Sound amplitude was largest at converging position. Crossed-mirror array can form aerial image by reflection. This convergence can be achieved not only in light but also in any waves. Crossed-mirror array can converge any sort of wave that can be reflected by aperture wall of Crossed-mirror array. Sound wave can be converged by Crossed-mirror array for sound. However, sound waveform is not known precisely. In this paper, we clarify waveform of sound converged by Crossed-mirror array. Amplitude of sound waves with Crossed-mirror array is bigger than one without Crossed-mirror array. Frequency and waveform don��t change. Sound amplitude is largest at converging position.
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