| 用双超声脉冲法测量生物介质的非线性参数B/A |
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| 引用本文： | 夏雅琴,吴水才,马蓉,彭见曙. 用双超声脉冲法测量生物介质的非线性参数B/A[J]. 北京生物医学工程, 2001, 20(4): 265-267 |
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| 作者姓名： | 夏雅琴 吴水才 马蓉 彭见曙 |
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| 作者单位： | 北京工业大学生物医学工程中心,100022 |
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| 基金项目： | 国家自然科学基金;59676032; |
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| 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到泵波之上,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。
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| 关 键 词： | 超声波 非线性参数B／A 测量方法 双超声脉冲法 生物介质 |
| 文章编号： | 1002-3208(2001)04-0265-03 |
| 修稿时间： | 2000-09-18 |
Measurement of Ultrasonic Nonlinear Parameter B/A in Biological Media Using a Method of Twin-Ultrasound Pulse Waves |
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| XIA Yaqin,WU Shuicai,MA Rong,PENG Jianshu. Biomedical Engineering Center,Beijing Polytechnic University,Beijing. Measurement of Ultrasonic Nonlinear Parameter B/A in Biological Media Using a Method of Twin-Ultrasound Pulse Waves[J]. Beijing Biomedical Engineering, 2001, 20(4): 265-267 |
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| Authors: | XIA Yaqin WU Shuicai MA Rong PENG Jianshu. Biomedical Engineering Center Beijing Polytechnic University Beijing |
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| Affiliation: | XIA Yaqin,WU Shuicai,MA Rong,PENG Jianshu. Biomedical Engineering Center,Beijing Polytechnic University,Beijing 100022 |
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| Abstract: | 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. |
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| Keywords: | Ultrasonic wave Nonlinear parameter B/A Measurement method |
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