A numerical investigation of the performance of sound
                intensity probes at high frequencies

Vicente Cutanda; Peter Møller Juhl; Finn Jacobsen

A numerical investigation of the performance of sound intensity probes at high frequencies

Vicente Cutanda, Peter Møller Juhl, Finn Jacobsen

Technical University of Denmark

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

The influence of diffraction on the performance of sound intensity probes has been examined using a boundary element model of an axisymmetric 'two-microphone' probe with the microphones in the usual 'face-to-face' arrangement. On the basis of calculations for a variety of sound field conditions and probe geometries it is concluded that the optimum length of the spacer between the microphones is about one microphone diameter; with this geometry the effect of diffraction and the finite difference error almost counterbalance each other up to about an octave above the frequency that has hitherto been regarded as the upper frequency limit of this configuration. The numerical results have been confirmed by experiments.

Original language	English
Title of host publication	Fourth International Congress on Sound and Vibration
Place of Publication	Auburn, AL
Publisher	International Scientific Publications
Publication date	1996
Pages	1897-1904
Publication status	Published - 1996
Event	4th International Congress on Sound and Vibration - St. Petersburg, Russian Federation Duration: 24 Jul 1996 → 27 Jul 1996 Conference number: 4

Conference

Conference	4th International Congress on Sound and Vibration
Number	4
Country/Territory	Russian Federation
City	St. Petersburg
Period	24/07/1996 → 27/07/1996

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Cite this

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title = "A numerical investigation of the performance of sound intensity probes at high frequencies",

abstract = "The influence of diffraction on the performance of sound intensity probes has been examined using a boundary element model of an axisymmetric 'two-microphone' probe with the microphones in the usual 'face-to-face' arrangement. On the basis of calculations for a variety of sound field conditions and probe geometries it is concluded that the optimum length of the spacer between the microphones is about one microphone diameter; with this geometry the effect of diffraction and the finite difference error almost counterbalance each other up to about an octave above the frequency that has hitherto been regarded as the upper frequency limit of this configuration. The numerical results have been confirmed by experiments.",

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Cutanda, V, Juhl, PM & Jacobsen, F 1996, A numerical investigation of the performance of sound intensity probes at high frequencies. in Fourth International Congress on Sound and Vibration. International Scientific Publications, Auburn, AL, pp. 1897-1904, 4th International Congress on Sound and Vibration, St. Petersburg, Russian Federation, 24/07/1996.

A numerical investigation of the performance of sound intensity probes at high frequencies. / Cutanda, Vicente; Juhl, Peter Møller; Jacobsen, Finn.
Fourth International Congress on Sound and Vibration. Auburn, AL: International Scientific Publications, 1996. p. 1897-1904.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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BT - Fourth International Congress on Sound and Vibration

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