| 血液流速测量中血红细胞的多普勒信号 |
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| 引用本文： | 黄德康,朱茂华. 血液流速测量中血红细胞的多普勒信号[J]. 激光杂志, 2002, 23(5): 62-62,65 |
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| 作者姓名： | 黄德康 朱茂华 |
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| 作者单位： | 大连海事大学数理系，大连海事大学数理系 辽宁大连 116026，辽宁大连 116026 |
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| 摘 要： | 采用双光束干涉条纹模型，用光散射理论得出了激光多普勒测速中大型散射粒子的多普勒信号幅值的表达式：用数值解法求得多普勒信号幅值随散射粒子半径变化的曲线。红血球直径即使比干涉条纹宽度大10倍，也会有良好的多普勒信号。给出了实测的血流多普勒信号。
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| 关 键 词： | 血液 流速测量 血红细胞 多普勒信号 激光 |
Doppler Signals in bloodstream speed measuring |
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| Huang Dekang Zhu maohua. Doppler Signals in bloodstream speed measuring[J]. Laser Journal, 2002, 23(5): 62-62,65 |
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| Authors: | Huang Dekang Zhu maohua |
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| Abstract: | The scattering theory of light is applied to obtain the amplitude expression of Doppler signals in bloodstream speed measuring with large scattering particles, in which the model of the interference fringes between two beams is employed;and mathematical method is applied to draw the curves of the variation of signal amplitude with the variation of particle radius. It comes to the conclusion that even though the diameters of erythrocytes are ten times as large as the widths of fringes, the signals are good enough to determine the speed of bloodstream. |
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| Keywords: | Doppler signal laser blood speed measuring |
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