| 扬声器低频谐波跳跃 |
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| 引用本文： | 宗丰德,张志良,方健文. 扬声器低频谐波跳跃[J]. 浙江师范大学学报(自然科学版), 2003, 26(2): 131-137 |
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| 作者姓名： | 宗丰德 张志良 方健文 |
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| 作者单位： | 浙江师范大学,数理与信息科学学院,浙江,金华,321004 |
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| 基金项目： | 浙江省自然科学基金资助项目 ( 10 0 0 39) |
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| 摘 要： | 通过能量法求解扬声器非线性振动系统的非线性微分方程的一阶近似解，得出幅频关系方程和谐波失真与频率关系曲线，并着重分析讨论了磁场的非线性对扬声器低频谐波失真跳跃的影响，得出了一些结论。
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| 关 键 词： | 扬声器 低频 谐波失真 关系曲线 频率 非线性微分方程 能量法 非线性振动系统 近似解 跳跃 |
| 文章编号： | 1001-5051-(2003)02-0131-07 |
| 修稿时间： | 2002-01-02 |
Total harmonic distortion jumping of a loudspeaker in low frequency range |
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| ZONG Feng-de,ZHANG Zhi-liang,FANG Jian-wen. Total harmonic distortion jumping of a loudspeaker in low frequency range[J]. Journal of Zhejiang Normal University Natural Sciences, 2003, 26(2): 131-137 |
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| Authors: | ZONG Feng-de ZHANG Zhi-liang FANG Jian-wen |
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| Abstract: | This paper aimed to find the first-order approximate solution of the nonlinear motion of a loudspeaker driven by a stable voltage source by the energy method.An equation was obtained relating the forced vibration amplitude with frequency and the corresponding curves about total harmonic distortion versus frequency through calculation and analysis using MATLAB software.The paper also analyzed the influence of nonlinearity of magnetic field on the total harmonic distortion jumping of the loudspeaker, and came to several useful conclusions. |
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| Keywords: | nonlinearity of magnetic field total harmonic distortion jumping the energy method spectrum analysis MATLAB software |
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