| 一种测量液体粘滞系数的新方法 |
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| 引用本文： | 郭敏.一种测量液体粘滞系数的新方法[J].物理,2001,30(4):220-222. |
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| 作者姓名： | 郭敏 |
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| 作者单位： | 陕西师范大学计算机科学学院 |
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| 摘 要： | 文章报道了一种测量液体粘滞系数的新方法－微机控制超声多普勒法，它将超声技术与计算机技术相结合，利用超声多普勒效应接收液体中下落小球的频移信号，将此信号送微机进行采集、比较、判断、计算并出粘滞系数，应用本方法能快速准确地测量多种液体的粘滞系数。
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| 关 键 词： | 粘滞系数 超声多普勒效应 频移信号 微机控制 |
| 修稿时间： | 2000年9月7日 |
A NOVEL METHOD TO MEASURE
THE VISCOSITY FACTOR OF LIQUIDS |
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| GUO Min.A NOVEL METHOD TO MEASURE
THE VISCOSITY FACTOR OF LIQUIDS[J].Physics,2001,30(4):220-222. |
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| Authors: | GUO Min |
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| Abstract: | A new method to measure the viscosity factor of liquids by the ultrasonic Doppler effect is reported. The method combines ultrasonic and microcomputer techniques. The frequency shifting signal of a dropping ball in the liquid is received via ultrasound. Under the control of the microcomputer the data are collected, processed and analysed, and the result is displayed on the screen. The viscosity factors of many kinds of liquids can be detected quickly and accurately by this method. |
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| Keywords: | viscosity factor ultrasonic Doppler effect frequency shifting signal under the control of the microcomputer |
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