摘要
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.
With spectral difference method,ultrasonic transfers attenuation properties . of pigs fat,muscle and liver,respectively are studied.The result shows that the relations of attenuation coefficients vs.ultrasonic frequency excellently correspond to exponential laws for pigs fat and muscle and the relation of pigs liver corresponds to linear law nearly.
出处
《陕西师大学报（自然科学版）》
CSCD
1991年第4期39-42,共4页
Journal of Shaanxi Normal University(Natural Science Edition)
基金
国家自然科学基金
关键词
超声组织定征
衰减系数
规律拟合
ultrasound
attenuation coefficient
fat,muscle,liver
laws fit
