書誌事項
- タイトル別名
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- Attenuation Effects of Discrete Tone Using Adaptive Feedback Active Noise Control
- テキオウ フィードバック ノウドウ ソウオン セイギョ ニ ヨル リサン シュウハスウオン ノ ヨクセイ
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抄録
The attenuation characteristics of a slit resonator that combined the adaptive feedback ANC system at a ventilation aperture of the package for leakage noise is investigated. The discrete tones radiated from an AC axial flow fan are controlled by DSP using Filtered-X Least Meane Square algorithm. The attenuation is found at the range of : 3dB-14dB with circular slit resonator, 2dB-15dB with elliptic slit resonator. Results of measurement show that the proposed system can achieve TNR (Tone to Noise Ratio) and PR (Prominence Ratio) under threshold effectively.
収録刊行物
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- 日本機械学会論文集Ｃ編
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日本機械学会論文集Ｃ編 71 (701), 327-334, 2005
一般社団法人 日本機械学会