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

Abstract:

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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.

Info:

Periodical:

Edited by:

Ford Lumban Gaol, Mehdi Roopaei, Svetlana Perry and Jessica Xu

Pages:

136-139

DOI:

10.4028/www.scientific.net/AMM.87.136

Citation:

S. J. Pawar et al., "Experimental Verifications and Simulations of Magnetic Motor of Circular Miniature Loudspeaker for Total Harmonic Distortion Improvement", Applied Mechanics and Materials, Vol. 87, pp. 136-139, 2011

Online since:

August 2011

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Price:

$35.00

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