2009 Fiscal Year Final Research Report
Development of Virtual Sound Source System Based on Interference of Ultrasonic Waves and Application to Active Noise Control
| Project/Area Number |
20760147
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Dynamics/Control
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| Research Institution | Kanazawa University |
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Principal Investigator |
KOMATSUZAKI Toshihiko Kanazawa University, 機械工学系, 准教授 (80293372)
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| Project Period (FY) |
2008 – 2009
|
| Keywords | 機械力学・制御 / 能動騒音制御 / 指向性 / 静音化 / 超音波 |
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| Research Abstract |
In this study, a virtual sound production system is developed where the difference frequency component appears as the secondary audible sound at a point of interference locally by the nonlinear interaction of two independently radiated ultrasounds while they travel directionally and intersect each other. The design of high-directive ultrasonic radiator, followed by the investigation of virtual sound production performance has been done theoretically as well as experimentally.
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