| 一种用数字示波器测量液体表面张力系数的实验方法 |
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| 引用本文： | 穆秀家,刘智新,陈军.一种用数字示波器测量液体表面张力系数的实验方法[J].大学物理,2009,28(6). |
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| 作者姓名： | 穆秀家 刘智新 陈军 |
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| 作者单位： | 山东农业大学,物理实验中心,山东,泰安,271018 |
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| 摘 要： | 将弹簧作为电感线圈,与取样电阻构成RL串联电路.在正弦交流信号激励下,用数字示波器测量取样电压与作用力的关系,从而测得液体的表面张力系数.
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| 关 键 词： | 表面张力系数 电感线圈 取样电阻 取样电压 |
An experimental approach for measuring liquid surface tension coefficient with digital oscilloscope |
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| MU Xiu-jia,LIU Zhi-xin,CHEN Jun.An experimental approach for measuring liquid surface tension coefficient with digital oscilloscope[J].College Physics,2009,28(6). |
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| Authors: | MU Xiu-jia LIU Zhi-xin CHEN Jun |
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| Institution: | Physics Experiment Center;Agriculture University of Shandong;Taian;Shandong 271018;China |
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| Abstract: | A spring as an inductance turn and a sampling resistance are made up of a RL series circuit.Under the prompting of alternating current,the relation of the acting force and the sampling voltage is measured with a digital oscilloscope,thus the liquid surface tension coefficient is obtained. |
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| Keywords: | liquid surface tension coefficient inductance turn sampling resistance:sampling voltage |
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