| 毛细管法测量液体黏度实验再设计 |
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| 引用本文： | 钱钧,惠王伟,张春玲,陆文强,孙骞. 毛细管法测量液体黏度实验再设计[J]. 物理实验, 2012, 32(6): 1-4 |
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| 作者姓名： | 钱钧 惠王伟 张春玲 陆文强 孙骞 |
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| 作者单位： | 南开大学物理科学学院,天津,300071 |
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| 基金项目： | 南开大学物理学基地资助项目 |
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| 摘 要： | 设计了简单的毛细管法测量液体黏度的实验装置,通过测量液面高度与时间的变化,拟合实验数据得到液体的黏度,省去了传统的恒压液槽的设计.通过毛细管外加恒温管的方法,可较准确地测量不同温度下液体黏度的变化.通过实验给出泊肃叶公式中液体流速与毛细管长度、内径以及两端压强差的关系.
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| 关 键 词： | 黏度 毛细管 泊肃叶公式 |
Determination of the viscosity of liquid by the capillary method |
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| QIAN Jun , HUI Wang-wei , ZHANG Chun-ling , LU Wen-qiang , SUN Qian. Determination of the viscosity of liquid by the capillary method[J]. Physics Experimentation, 2012, 32(6): 1-4 |
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| Authors: | QIAN Jun HUI Wang-wei ZHANG Chun-ling LU Wen-qiang SUN Qian |
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| Affiliation: | (School of Physics,Nankai University,Tianjin 300071,China) |
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| Abstract: | An experimental device for determining the viscosity of liquid by the capillary method was developed.The viscosity of liquid was obtained by measuring the relationship between the height of liquid surface and time.The constant-pressure liquid tank was not required in the experimental device.The viscosity of liquid at different temperatures could be measured using the constant temperature tube around the capillary.The teaching contents of the experiment were extended by the device. |
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| Keywords: | viscosity capillary Poiseuille formula |
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