| 扬声器纸盆材料动态弹性模量的新测量方法 |
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| 引用本文： | 杜学超,王文建,沙家正. 扬声器纸盆材料动态弹性模量的新测量方法[J]. 应用声学, 1998, 17(2): 26-30 |
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| 作者姓名： | 杜学超 王文建 沙家正 |
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| 作者单位： | 南京大学声学所!南京，210093，南京大学声学所!南京，210093，南京大学声学所!南京，210093 |
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| 摘 要： | 本文从理论上对末端有负载的臂梁的自由振动频率进行了计算，并采用新的激振和拾振装置，建立一种扬声器纸盆材料的动态弹性模量的新测量方法，测量了若干纸盆试样，得出典型的幅频响应曲线，并对实验结果进行了分析。
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| 关 键 词： | 杨氏模量 测量 扬声器 纸盆材料 弹性模量 |
A new method of measuring the dynamic elastic modulus of paper for loudspeaker |
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| Du Xuechao,Wang Wenjian and Sha Jiazheng. A new method of measuring the dynamic elastic modulus of paper for loudspeaker[J]. Applied Acoustics(China), 1998, 17(2): 26-30 |
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| Authors: | Du Xuechao Wang Wenjian Sha Jiazheng |
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| Affiliation: | Institute of Acoustics, Nanjing UDiversity Nanjing 210093;Institute of Acoustics, Nanjing UDiversity Nanjing 210093;Institute of Acoustics, Nanjing UDiversity Nanjing 210093 |
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| Abstract: | A theory is developed to calculate the inherent frequence of a cantilever with attached mass at the free end. At the same time, a new apparatus for activating and sensing of vibration is designed to measure the dynamic young's modulus of paper for the paper basin of a loudspeaker. Some test papers have been measured and typicalamplitude-frequency response curves acquired and analysed. |
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| Keywords: | Young's modulus Attenration coefficient |
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