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Studying Acoustical Properties of Micro-Speaker as a Function of Diaphragm Material  

Oh Sei-Jin (주성대학 음향공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.25, no.5, 2006 , pp. 222-228 More about this Journal
Abstract
The acoustical property of micro-speaker had been investigated as a function of the diaphragm material in this study. Young's modulus and the density of material is deeply related to the determination of sound velocity and stiffness. As a result, it was appeared that the resonance frequency of micro-speaker was PEI < PPS < PET < PEN. This experimental result was in an excellent agreement with the theoretical one. The increasing ratio of sound pressure level to the frequency between 20Hz and the resonance frequency ($f_s$) and the high resonance frequency ($f_h$) were not affected by the diaphragm material.
Keywords
Micro-speaker; diaphragm; Impedance; Resonance frequency; Frequency response;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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