Determination of the Sound Intensity Vector Field from Synchronized Sound Pressure Waveforms
Visualization of vector acoustic fields using sound intensity measurements is a very interesting field of acoustics and has numerous applications. Unfortunately, sound intensity measurement itself requires specialized measuring instruments (presure–presure (PP) or pressure–velocity (PU)-type probes)...
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MDPI AG
2024-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/23/11299 |
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| author | Witold Mickiewicz Michał Raczyński |
| author_facet | Witold Mickiewicz Michał Raczyński |
| author_sort | Witold Mickiewicz |
| collection | DOAJ |
| description | Visualization of vector acoustic fields using sound intensity measurements is a very interesting field of acoustics and has numerous applications. Unfortunately, sound intensity measurement itself requires specialized measuring instruments (presure–presure (PP) or pressure–velocity (PU)-type probes). This article presents a simplified and low-cost method of sound intensity measurement based on sound pressure measurements made synchronously. This allows for the use of a single microphone and eliminates one of the main problems of the classical PP probe, which is the phase mismatch of two different microphones. The described method was used to visualize the vector acoustic field in front of an active loudspeaker. The results were compared qualitatively and quantitatively with measurements made with a commercial PU intensity probe. The results obtained showed that the proposed method has the same level of metrological accuracy. |
| format | Article |
| id | doaj-art-d46300a6712e48638117c0021c424d47 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-d46300a6712e48638117c0021c424d472025-08-20T02:38:41ZengMDPI AGApplied Sciences2076-34172024-12-0114231129910.3390/app142311299Determination of the Sound Intensity Vector Field from Synchronized Sound Pressure WaveformsWitold Mickiewicz0Michał Raczyński1Faculty of Electrical Engineering, Westpomeranian University of Technology, Al. Piastow 17, 70-310 Szczecin, PolandFaculty of Electrical Engineering, Westpomeranian University of Technology, Al. Piastow 17, 70-310 Szczecin, PolandVisualization of vector acoustic fields using sound intensity measurements is a very interesting field of acoustics and has numerous applications. Unfortunately, sound intensity measurement itself requires specialized measuring instruments (presure–presure (PP) or pressure–velocity (PU)-type probes). This article presents a simplified and low-cost method of sound intensity measurement based on sound pressure measurements made synchronously. This allows for the use of a single microphone and eliminates one of the main problems of the classical PP probe, which is the phase mismatch of two different microphones. The described method was used to visualize the vector acoustic field in front of an active loudspeaker. The results were compared qualitatively and quantitatively with measurements made with a commercial PU intensity probe. The results obtained showed that the proposed method has the same level of metrological accuracy.https://www.mdpi.com/2076-3417/14/23/11299sound intensitymeasurement of sound intensitysound fieldvector sound field measurement and visualization |
| spellingShingle | Witold Mickiewicz Michał Raczyński Determination of the Sound Intensity Vector Field from Synchronized Sound Pressure Waveforms Applied Sciences sound intensity measurement of sound intensity sound field vector sound field measurement and visualization |
| title | Determination of the Sound Intensity Vector Field from Synchronized Sound Pressure Waveforms |
| title_full | Determination of the Sound Intensity Vector Field from Synchronized Sound Pressure Waveforms |
| title_fullStr | Determination of the Sound Intensity Vector Field from Synchronized Sound Pressure Waveforms |
| title_full_unstemmed | Determination of the Sound Intensity Vector Field from Synchronized Sound Pressure Waveforms |
| title_short | Determination of the Sound Intensity Vector Field from Synchronized Sound Pressure Waveforms |
| title_sort | determination of the sound intensity vector field from synchronized sound pressure waveforms |
| topic | sound intensity measurement of sound intensity sound field vector sound field measurement and visualization |
| url | https://www.mdpi.com/2076-3417/14/23/11299 |
| work_keys_str_mv | AT witoldmickiewicz determinationofthesoundintensityvectorfieldfromsynchronizedsoundpressurewaveforms AT michałraczynski determinationofthesoundintensityvectorfieldfromsynchronizedsoundpressurewaveforms |