摘要
利用生物介质的超声非线性参数B A与温度的相关性可实现超声无创测温 ,本文介绍了一种用双超声脉冲法测量介质非线性参数B A的方法。这种方法是把探测波叠加在泵波之上 ,利用这两个波的非线性作用来测出参数B A。实验结果表明该方法切实可行 ,能准确地测得参数B A ,为实现高质量的超声无损伤测温提供了可能。
With the application of property of relations between ultrasound nonlinear parameter B/A and temperature noninvasive temperature measurement in biological media can be implemented. The method for measuring parameter B/A, using the nonlinearity by superimposing waves detected and pump pulse waves. It is described in this paper. The experimental result showed that the method proposed is feasible to accurately measure parameter B/A and can provide a possible noninvasive measure of temperature in biological media.
出处
《北京生物医学工程》
EI
2001年第4期265-267,共3页
Beijing Biomedical Engineering
基金
国家自然科学基金资助 ( 5 96 76 0 32 )
