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应用频谱分析的谱差法,对猪离体的脂肪、肌肉及肝组织的超声传输衰减特性进行了实验分析.结果表明,猪脂肪、肌肉组织的衰减系数随频率的变化与指数规律符合相当好;肝组织的衰减乐数和频率的关系与线性规律接近.
The spectral analysis of the spectral difference method was used to analyze the attenuation characteristics of the pig fat, muscle and liver in vitro. The results showed that the attenuation coefficient of pig fat and muscle tissue was in good agreement with the exponential law ; The relationship between the attenuation of liver tissue and frequency and the linear law.