Acoustic impedance variations of Helmholtz resonators of two plates with orifices inlet neck against the distance between the plates
Experimental examinations of acoustic impedance of complex Helmholtz resonators of two plates with orifices inlet neck using Kundt tube procedure were performed. Few variants of model resonators were studied depending on the number of orifices (and their diameters) in the plates and...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2004-01-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/473 |
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| author | M. Birnbach A. Śliwiński S. Zachara |
| author_facet | M. Birnbach A. Śliwiński S. Zachara |
| author_sort | M. Birnbach |
| collection | DOAJ |
| description | Experimental examinations of acoustic impedance of complex
Helmholtz resonators of two plates with orifices inlet neck using Kundt tube
procedure were performed. Few variants of model resonators were studied
depending on the number of orifices (and their diameters) in the plates and
against variations of the distance between the plates for a constant volume of
the resonator cavity. A regular dependence of the acoustical impedance as well
as the absorption coefficient against the distance between the inlet cover
plates was observed for a given configuration of the orifices. Changes of the
configuration (number of orifices their size and plane distribution in both
plates and the relation between the lower and the upper one design) caused
evident variations in acoustical properties, however no regular dependence could
be found. Some configurations are more optimal than the others. |
| format | Article |
| id | doaj-art-02f9bb79ed9746ecb15bbf5c7cbc674c |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2004-01-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-02f9bb79ed9746ecb15bbf5c7cbc674c2025-08-20T02:39:11ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2004-01-01292Acoustic impedance variations of Helmholtz resonators of two plates with orifices inlet neck against the distance between the platesM. Birnbach0A. Śliwiński1S. Zachara2Lyceum No 2 (secondary school)University of Gdańsk, Institute of Experimental PhysicsUniversity of Gdańsk, Institute of Experimental PhysicsExperimental examinations of acoustic impedance of complex Helmholtz resonators of two plates with orifices inlet neck using Kundt tube procedure were performed. Few variants of model resonators were studied depending on the number of orifices (and their diameters) in the plates and against variations of the distance between the plates for a constant volume of the resonator cavity. A regular dependence of the acoustical impedance as well as the absorption coefficient against the distance between the inlet cover plates was observed for a given configuration of the orifices. Changes of the configuration (number of orifices their size and plane distribution in both plates and the relation between the lower and the upper one design) caused evident variations in acoustical properties, however no regular dependence could be found. Some configurations are more optimal than the others. https://acoustics.ippt.pan.pl/index.php/aa/article/view/473 |
| spellingShingle | M. Birnbach A. Śliwiński S. Zachara Acoustic impedance variations of Helmholtz resonators of two plates with orifices inlet neck against the distance between the plates Archives of Acoustics |
| title | Acoustic impedance variations of Helmholtz resonators of two plates with
orifices inlet neck against the distance between the plates |
| title_full | Acoustic impedance variations of Helmholtz resonators of two plates with
orifices inlet neck against the distance between the plates |
| title_fullStr | Acoustic impedance variations of Helmholtz resonators of two plates with
orifices inlet neck against the distance between the plates |
| title_full_unstemmed | Acoustic impedance variations of Helmholtz resonators of two plates with
orifices inlet neck against the distance between the plates |
| title_short | Acoustic impedance variations of Helmholtz resonators of two plates with
orifices inlet neck against the distance between the plates |
| title_sort | acoustic impedance variations of helmholtz resonators of two plates with orifices inlet neck against the distance between the plates |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/473 |
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