204 EXPERIMENTAL RESULTS OF CONVERTED NAH METHOD(O.S.4 Measurement and Sensor I)

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概要

• 論文の詳細を見る

• In the sound source localization methods, the Acoustic Intensity method is widely used in the actual industry. On the other hand, the Nearfield Acoustic Holography method, which is also a localization method, is not spread to the actual industry field because of its troublesome measurement in high frequency measurement. In high frequency, the Nearfield Acoustic Holography method requires the huge number of measurement points, and it causes extraordinary prolonged measurement time and huge data size. I am proposing theoretically converted Nearfield Acoustic Holography method, which uses the spatial extra spectrums in the back propagating computation of NAH method. This method can measure the sound field by reasonable measurement points even if in high frequency. As a result, the workload of measurement is reduced to the same level with the Acoustic Intensity method. In this paper, the theory of proposing method is explained, and some experimental results are presented to verify this method.

• 一般社団法人日本機械学会の論文
• 2005-05-31

著者

• Nagamatsu Masao

  Department Of Engineering Hokkaido Institute Of Technology

関連論文

• A New Approach on Modeling for Product Development : Expansion and Unification
• A New Approach on Modeling for Product Development : (The Basic Concept of Functional Model)
• Experimental Results of Converted NAH Method(Advanced Technology of Vibration and Sound)
• 204 EXPERIMENTAL RESULTS OF CONVERTED NAH METHOD(O.S.4 Measurement and Sensor I)

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