| A型超声探测纵向分辨力的测量方法改进 |
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| 引用本文： | 吴祖明.A型超声探测纵向分辨力的测量方法改进[J].物理实验,2004,24(9):47-48. |
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| 作者姓名： | 吴祖明 |
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| 作者单位： | 广东医学院,医用物理学教研室,广东,湛江,524023 |
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| 摘 要： | 按《医学影像物理学实验》教材给出的A型超声探测的纵向分辨力的测量方法，第二个界面的回波难以显示，因而给测量带来困难．本文将水盘内两玻片在探头轴线位置上“一前一后”放置改为“相对探头轴线左右错开”放置，测量结果的重复性好而且直观．
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| 关 键 词： | 医学教学 《医学影像物理学实验》 A型超声探测 分辨力 回波 声像图 |
| 文章编号： | 1005-4642(2004)09-0047-02 |
| 修稿时间： | 2004年5月2日 |
Improvement on the method to survey the longitudinally resolving power by amplitude modulation |
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| WU Zu-ming.Improvement on the method to survey the longitudinally resolving power by amplitude modulation[J].Physics Experimentation,2004,24(9):47-48. |
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| Authors: | WU Zu-ming |
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| Abstract: | As presented in the textbook, it is difficult to determine the longitudinally resolving power by amplitude modulation. The second-echo can not display directly. The two slides in water plate are alternated respective to the axis, instead of at the same line. The measurement relults is direct-viewed and can be repeated very well. |
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| Keywords: | amplitude ultrasonic modulation sound-imagegraph resolving power echo |
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