| 最大气泡压力法测液体表面张力系数的改进 |
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| 引用本文： | 赵宏伟,李茫雪,白士刚.最大气泡压力法测液体表面张力系数的改进[J].物理实验,2007,27(7):36-38. |
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| 作者姓名： | 赵宏伟 李茫雪 白士刚 |
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| 作者单位： | 东北农业大学,理学院,黑龙江,哈尔滨,150030 |
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| 基金项目： | 东北农业大学理学院教学研究基金 |
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| 摘 要： | 对最大气泡压力法测定液体表面张力系数的实验原理、方法及仪器进行了研究,提出用螺旋活塞定量加压控制气泡的生成速度;用扩散硅气体压力传感器测量压强,测得值数字显示;用双毛细管制作实验探头,消除了毛细管插入液体一定深度产生的静压强及待测液体密度等对计算液体表面张力系数的影响,提高了液体表面张力系数的测量速度和精度.
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| 关 键 词： | 液体表面张力系数 最大气泡压力法 双毛细管探头 |
| 文章编号： | 1005-4642（2007）07-0036-03 |
| 修稿时间： | 2006-11-072007-01-08 |
Research on the maximum bubble pressure method to measure the liquid surface tension coefficient |
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| ZHAO Hong-wei,LI Mang-xue,BAI Shi-gang.Research on the maximum bubble pressure method to measure the liquid surface tension coefficient[J].Physics Experimentation,2007,27(7):36-38. |
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| Authors: | ZHAO Hong-wei LI Mang-xue BAI Shi-gang |
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| Institution: | Science College, Northeast Agriculture University, Harbin 150030, China |
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| Abstract: | In this paper,the experimental principle,the methods and the instrument are studied to measure the liquid surface tension coefficient with the maximum bubble pressure method.A new method that controls the air bubble production speed with the screw tap quota is proposed,the pressure is measured with the proliferation silicon gas pressure sensor,and the recorded data are displayed visually.Double capillaries are made and used as probes.The influences of the density and the static pressure of the liquid are eliminated,and the speed and precision are improved. |
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| Keywords: | liquid surface tension coefficient maximum bubble pressure method double capillary probe |
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