扬声器纸盆材料动态弹性模量的新测量方法  

A new method of measuring the dynamic elastic modulus of paper for loudspeaker

作　　者：杜学超[1] 王文建[1] 沙家正[1] 

机构地区：[1]南京大学声学所,南京210093

出　　处：《应用声学》1998年第2期26-30,共5页Journal of Applied Acoustics

摘　　要：本文从理论上对末端有负载的悬臂梁的自由振动频率进行了计算，并采用新的激振和抬振装置，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．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.

关 键 词：杨氏模量 测量 扬声器 纸盆材料 弹性模量 

分 类 号：TN643[电子电信—电路与系统]