Sonic crystal acoustic switch device


ALAGÖZ S. , ALAGÖZ B. B.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, cilt.133, 2013 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 133 Konu: 6
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1121/1.4807306
  • Dergi Adı: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA

Özet

This study reports a wave-controlled sonic crystal switch device that exhibits a destructive interference-based wave to wave reverse switching effect. By applying control waves, this acoustic device, composed of a two-dimensional square lattice sonic crystal block, reduces acoustic wave transmission from input to output. The finite difference time domain simulation and experimental results confirm the wave-to-wave reverse switching effect at the peak frequencies of the second band. The proposed sonic crystal switch prototype provides a contrast rate of 86% at 11.3 kHz frequency. This wave-to-wave switching effect is useful for controlling wave propagation for smart structure applications. (C) 2013 Acoustical Society of America