パラメトリックスピーカーにおける生成音の位相シミュレーション

Material type: 文書・図像類

Author: クマール, サハデウほか

Publisher: 愛知工業大学

Publication date: 2016-09-23

Material Format: Digital

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Note (General)：: The phase of sound waves in a strong ultrasonic wave is simulated using the Khokhlov-Zabolotskaya-Kuznetsov equation，which is solved as a transformed ...

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Material Type: 文書・図像類
Title: パラメトリックスピーカーにおける生成音の位相シミュレーション
Author/Editor: クマール, サハデウ
古橋, 秀夫
Author Heading: クマール, サハデウ
古橋, 秀夫
Publication, Distribution, etc.: 愛知工業大学
Publication Date: 2016-09-23
Publication Date (W3CDTF): 2016-09-23
Alternative Title: パラメトリックスピーカーニオケルセイセイオンノイソウシミュレーション
Simulation of the phase of sound generated by a parametric speaker
Periodical title: 総合技術研究所研究報告=Bulletin of Research Institute for Industrial Technology.
No. or year of volume/issue: 18
Volume: 18
Pages: 49-54
ISSN (Periodical Title): ISSN : 1344-9672
Text Language Code: jpn
Target Audience: 一般
Note (General): The phase of sound waves in a strong ultrasonic wave is simulated using the Khokhlov-Zabolotskaya-Kuznetsov equation，which is solved as a transformed beam equation using the Richtmyer method. The simulation is applied to a parametric speaker using amplitude modulation and self-demodulation with a circular configuration. The characteristics of the generated audio waveform are compared with those of plane and spherical ones. The phase of the generated waveform is different from those of plane and spherical waves. However，the generated waveform shows similar characteristics to those of a spherical one within a few degrees of the sound axis. This similarity decreases with increasing distance from the axis，and the phase converges to that of a plane wave. From the viewpoint of the phase，the audio waveform generated by the parametric speaker can be regarded as a narrow wave generated at a virtual point source located at the rear of the speaker.
identifier:http://repository.aitech.ac.jp/dspace/handle/11133/3145
Format (IMT): application/pdf
Source: http://repository.aitech.ac.jp/dspace/bitstream/11133/3145/1/%e7%b7%8f%e7%a0%9418%e5%8f%b7%28p49-p54%29.pdf
http://repository.aitech.ac.jp/dspace/bitstream/11133/3145/1/%e7%b7%8f%e7%a0%9418%e5%8f%b7%28p49-p54%29.pdf
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 愛知工業大学 : 愛知工業大学学術情報リポジトリ