Distortion in Electrodynamic Loudspeakers Caused by Force Factor Variations
The non linearities in the motor of an electrodynamic loudspeaker are still a discussed topic. This paper studies the influence of the force factor variation with the coil displacement on the harmonic and inter-modulation distortions. The real variation is described at least by a linear and a quadra...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2013-10-01
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| Series: | Archives of Acoustics |
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| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/150 |
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| author | Mehran ERZA Guy LEMARQUAND Valerie LEMARQUAND |
| author_facet | Mehran ERZA Guy LEMARQUAND Valerie LEMARQUAND |
| author_sort | Mehran ERZA |
| collection | DOAJ |
| description | The non linearities in the motor of an electrodynamic loudspeaker are still a discussed topic. This paper studies the influence of the force factor variation with the coil displacement on the harmonic and inter-modulation distortions. The real variation is described at least by a linear and a quadratic term. The effect of each term is studied separately, as they don’t influence the same kind of frequencies, harmonics or inter-modulation. Both terms considered together result in enhanced effects. The dissymmetry of the Bl variation with regard to the coil centered position has also peculiar effects. This paper presents the method developed to calculate the power of each harmonic and inter-modulation frequency. This allows to compare the obtained values and thus the induced nonlinearities. |
| format | Article |
| id | doaj-art-3ddc0d8a6c9340e99e9e05586fa3231d |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2013-10-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-3ddc0d8a6c9340e99e9e05586fa3231d2025-08-20T02:39:20ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2013-10-01364Distortion in Electrodynamic Loudspeakers Caused by Force Factor VariationsMehran ERZA0Guy LEMARQUAND1Valerie LEMARQUAND2Laboratoire d’Acoustique de l’Universite du Maine UMR CNRS 6613Laboratoire d’Acoustique de l’Universite du Maine UMR CNRS 6613Universite de Toulouse LAPLACE UMR CNRS 5213; IUT FigeacThe non linearities in the motor of an electrodynamic loudspeaker are still a discussed topic. This paper studies the influence of the force factor variation with the coil displacement on the harmonic and inter-modulation distortions. The real variation is described at least by a linear and a quadratic term. The effect of each term is studied separately, as they don’t influence the same kind of frequencies, harmonics or inter-modulation. Both terms considered together result in enhanced effects. The dissymmetry of the Bl variation with regard to the coil centered position has also peculiar effects. This paper presents the method developed to calculate the power of each harmonic and inter-modulation frequency. This allows to compare the obtained values and thus the induced nonlinearities.https://acoustics.ippt.pan.pl/index.php/aa/article/view/150electodynamic loudspeakernon linearityforce factor |
| spellingShingle | Mehran ERZA Guy LEMARQUAND Valerie LEMARQUAND Distortion in Electrodynamic Loudspeakers Caused by Force Factor Variations Archives of Acoustics electodynamic loudspeaker non linearity force factor |
| title | Distortion in Electrodynamic Loudspeakers Caused by Force Factor Variations |
| title_full | Distortion in Electrodynamic Loudspeakers Caused by Force Factor Variations |
| title_fullStr | Distortion in Electrodynamic Loudspeakers Caused by Force Factor Variations |
| title_full_unstemmed | Distortion in Electrodynamic Loudspeakers Caused by Force Factor Variations |
| title_short | Distortion in Electrodynamic Loudspeakers Caused by Force Factor Variations |
| title_sort | distortion in electrodynamic loudspeakers caused by force factor variations |
| topic | electodynamic loudspeaker non linearity force factor |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/150 |
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