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Experimental Verifications and Simulations of Magnetic Motor of Circular Miniature Loudspeaker for Total Harmonic Distortion Improvement

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Abstract:

The reduction in total harmonic distortion of miniature loudspeaker is reported by investigating the force factor (Bl(x)). Micro tensile testing is employed to get Bl(x) vs x curves, which verify finite element simulation. Furthermore, magnetic system of miniature loudspeaker is modified to obtain tailor made Bl(x) vs x curves. Based on it, prototypes are fabricated, which is followed by total harmonic distortion and sound pressure level measurements in an anechoic chamber. Measurements reveal a significant reduction in total harmonic distortion without affecting the sound pressure level.

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Applied Mechanics and Manufacturing Technology View Preview

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Periodical:

Applied Mechanics and Materials (Volume 87)

Pages:

136-139

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.87.136

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Online since:

August 2011

Authors:

Suryappa Jayappa Pawar, Soar Weng, Jin Huang Huang

Keywords:

Force Factor, Miniature Loudspeaker, Sound Pressure Level, Total Harmonic Distortion (THD)

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] W.J. Cunninghum: J. Acoust. Soc. Am. Vol. 21 (1949), p.202.

Google Scholar

[2] W. Klippel: J. Audio Eng. Soc. Vol. 38 (1990), p.944.

Google Scholar

[3] W. Klippel, U. Seide, Available: klippel@klippel.

Google Scholar

[4] W. Klippel, Available: klippel@klippel. de.

Google Scholar

[5] A.J. M. Kaizer, Presented at 80th AES Convention, Montreux, Switzerland, March (1986).

Google Scholar

[6] R. Ravaud, G. Lemarquand and T. Roussel, Appl. Acoust. Vol. 70 (2009), p.450.

Google Scholar

[7] J.R.M. Aerts, J.J.J. Dirckx and R. Pintelon, Opt. Laser Eng. Vol. 47 (2009), p.419.

Google Scholar

[8] R.J. Mihelich, Presented at 111th AES Convention, New York, USA, September (2001).

Google Scholar

[9] I. Aldoshina, A. Voishvillo, V. Mazin, Presented at 97th AES Convention, San Francisco, USA, November (1994).

Google Scholar

[10] G.Y. Hwang, H.G. Kim, S.M. Hwang and B.S. Kang: IEEE T. Magn. Vol. 38 (2002), p.2376.

Google Scholar

[11] X. Xu, Y.J. Guo: J. Audio Eng. Soc. Vol. 57 (2009), p.951.

Google Scholar

[12] G. Lemarquand: IEEE T. Magn. Vol. 43 (2007), p.3371.

Google Scholar

[13] B. Merit, G. Lemarquand: Arch. Acoust. Vol. 33 (2008), p.59.

Google Scholar

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