Correlation method of measurements of sound power in the near field conditions
The results of sound power measurements under near field conditions have been compared with the results obtained for far field conditions. For near field measurements correlation and phase methods were used. Far field conditions were investigated by means of reverberation and free-field methods. The...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2016-03-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/3514 |
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| _version_ | 1850104972267487232 |
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| author | Stefan CZARNECKI Zbigniew ENGEL Ryszard PANUSZKA |
| author_facet | Stefan CZARNECKI Zbigniew ENGEL Ryszard PANUSZKA |
| author_sort | Stefan CZARNECKI |
| collection | DOAJ |
| description | The results of sound power measurements under near field conditions have been compared with the results obtained for far field conditions. For near field measurements correlation and phase methods were used. Far field conditions were investigated by means of reverberation and free-field methods. The experiments were performed on a piston in an infinite baffle, the situation assumed in the calculations.
Quite good agreement of the results was obtained at low frequencies. For the higher frequencies this agreement appeared to be worse although this disagreement has been explained theoretically.
The usefulness f a correlation method for the measurement of sound power under near field conditions was confirmed. The method can be used in practice for the evaluation of the sound power generated by different parts of machinery. |
| format | Article |
| id | doaj-art-5b0d3e67678a459fbb953941f3b3d42e |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2016-03-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-5b0d3e67678a459fbb953941f3b3d42e2025-08-20T02:39:13ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2016-03-0113Correlation method of measurements of sound power in the near field conditionsStefan CZARNECKI0Zbigniew ENGEL1Ryszard PANUSZKA2Institute of Fundamental Technological Research Polish Academy of SciencesAGH University of Science and TechnologyAGH University of Science and TechnologyThe results of sound power measurements under near field conditions have been compared with the results obtained for far field conditions. For near field measurements correlation and phase methods were used. Far field conditions were investigated by means of reverberation and free-field methods. The experiments were performed on a piston in an infinite baffle, the situation assumed in the calculations. Quite good agreement of the results was obtained at low frequencies. For the higher frequencies this agreement appeared to be worse although this disagreement has been explained theoretically. The usefulness f a correlation method for the measurement of sound power under near field conditions was confirmed. The method can be used in practice for the evaluation of the sound power generated by different parts of machinery.https://acoustics.ippt.pan.pl/index.php/aa/article/view/3514 |
| spellingShingle | Stefan CZARNECKI Zbigniew ENGEL Ryszard PANUSZKA Correlation method of measurements of sound power in the near field conditions Archives of Acoustics |
| title | Correlation method of measurements of sound power in the near field conditions |
| title_full | Correlation method of measurements of sound power in the near field conditions |
| title_fullStr | Correlation method of measurements of sound power in the near field conditions |
| title_full_unstemmed | Correlation method of measurements of sound power in the near field conditions |
| title_short | Correlation method of measurements of sound power in the near field conditions |
| title_sort | correlation method of measurements of sound power in the near field conditions |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/3514 |
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