| 热疗用聚焦脉冲声场的时域和频域特性研究 |
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| 引用本文： | 钱盛友,王鸿樟.热疗用聚焦脉冲声场的时域和频域特性研究[J].应用声学,2001,20(3):6-10. |
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| 作者姓名： | 钱盛友 王鸿樟 |
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| 作者单位： | 1. 湖南师范大学电子信息科学系
2. 上海交通大学生物医学工程系 |
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| 基金项目： | 湖南省教委基金资助项目 |
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| 摘 要： | 本文用传递函数的概念导出了凹球面聚焦脉冲声扬的简洁表达式，从数值计算上和实验上研究了这种声场和中轴线上不同位置处声压信号的持续时间和频谱特征，分析了它们对热疗的影响。
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| 关 键 词： | 聚焦脉冲声扬 时域 频域 肿瘤 超声加热治疗 传递函数 |
Study of focused impulse sound field in time domain and frequency domain for hyperthermia |
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| QIAN Shenyou and WANG Hongzhang.Study of focused impulse sound field in time domain and frequency domain for hyperthermia[J].Applied Acoustics,2001,20(3):6-10. |
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| Authors: | QIAN Shenyou and WANG Hongzhang |
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| Institution: | Department of Biomedical Engineering;Shanghai Jiaotong University, Shanghai200030 |
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| Abstract: | A simple expression of focused impulse sound field generated by concave spherical surface transducers is deduced based on the concept of transfer function. The duration and spectral characteristics of acoustic pressure signal at various sites of the transducer axis in this sound field are studied numerically and experimentally, and its effects on hyperthermia are analyzed. |
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| Keywords: | Hyperthermia Focused impulse sound field Time domain Frequency domain |
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