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骨声振动分析中软组织加速度计的影响分析
引用本文:彭健新,马玉英.骨声振动分析中软组织加速度计的影响分析[J].声学技术,1996,15(2):64-67.
作者姓名:彭健新  马玉英
作者单位:陕西师范大学应用声学研究所!西安710062
摘    要:在骨声振动分析中皮肤,肌肉等软组织,加速度计对结果有一定的影响,本文分析在体胫骨测试的情况,用力电类比的方法分析这些因素对骨声振动的影响。结果表明,加速度计的质量大小,及加速度计与骨之间的软组织硬度对结果影响较大,测试时频率分析范围必须远小于加速计在软组织上的共振频率而远大地软组织的自振频率。

关 键 词:骨声振动分析  共振频率    软组织  加速度计

Influence of accelerometer and soft tissue on sound vibration analysis of bone
PENG Jianxin MA Yuying ZHANG Ruoxin CHEN Qimin.Influence of accelerometer and soft tissue on sound vibration analysis of bone[J].Technical Acoustics,1996,15(2):64-67.
Authors:PENG Jianxin MA Yuying ZHANG Ruoxin CHEN Qimin
Abstract:Accelerometer and soft tissue such as skin and muscle have an influence on the result of sound vibration analysis of bone. Measurement of the tibia and the influence of soft tissue and accelerometer on the bone sound vibration has been investigated by force-voltage analogue circuit in this paper. The result shows that the mass of accelerometer and stiffness of soft tissue between accelerometer and bone have a significant influence. It is suggested that frequency to be analyzed must be less than the resonant frequency of the accelerometer on the soft tissue and much greater than the resonant frequency of the soft tissue.
Keywords:sound vibration analysis  resonant frequency  bone  soft tissue  accelerometer
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