焦利氏秤测量液体表面张力系数实验改进

doi:10.14139/j.cnki.cn22-1228.2022.06.013

下载:

PDF (709KB)
输出: BibTeX | EndNote (RIS)

摘要

对我校大学物理实验项目“焦利氏秤测量液体表面张力系数”进行改进，其中将容易变形的门形丝改为不易变形且形状规则的长方形卡片或空心圆柱桶;将焦利氏秤上的长度刻度改为直接可读的微小力刻度，并采用动态摄影技术，通过慢放精准定位读出力的大小。此改进方法不仅降低了操作难度，简化了实验过程，最重要的是减小了读数和测量结果误差。

	服务
	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	（）
	作者相关文章
	吴魏霞
	史萍
	张孟佳
	李福芸
	张翱
	孙兆永

关键词: 表面张力系数拉脱法焦利氏秤

Abstract:

Measuring surface tension coefficient of liquid by Jolly scale”is a basic project in the university physics experiment，which uses the pull-out method to measure the tiny force of surface tension．Among them，it is difficult and complex to keep the‘hree-line alignment’all the time，and the gate wire which is used in the experiment is easy to deform，which makes the artificial reading very inaccurate．In view of this situation，the experiment is improved by changing the gate wire that is easy to deform into a rectangular card and hollow cylindrical barrel that are not easy to deform and have regular shapes．The length scale on the Jolly scale is changed to the direct readable micro force scale，and the dynamic photography technology is adopted to accurately locate the force by slowing down．Thus this improvement reduces the operation difficulty，simplifies the experiment process，and makes the reading more accurate．

Key words: surface tension coefficient pull-out method Jolly scale

出版日期: 2022-12-25 发布日期: 2022-12-25 整期出版日期: 2022-12-25

ZTFLH:

O 441．5

引用本文:

吴魏霞 , 史萍 , 张孟佳 , 李福芸 , 张翱 , 孙兆永 . 焦利氏秤测量液体表面张力系数实验改进 [J]. 大学物理实验, 2022, 35(6): 63-66.
WU Weixia , SHI Ping , ZHANG Mengjia , LI Fuyun , ZHANG Ao , SUN Zhaoyong . Improvement of the Experiment of Measuring Surface Tension Coefficient by Jolly Scale . Physical Experiment of College, 2022, 35(6): 63-66.

链接本文:

http://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2022.06.013 或 http://dawushiyan.jlict.edu.cn/CN/Y2022/V35/I6/63

[1]	吴显云, 张　容, 段世青, 赵文哲. 一种测量液体表面张力系数的新方法 [J]. 大学物理实验, 2022, 35(5): 64-67.
[2]	毛爱华 , 蔡禄 , 李丽荣 , 孙一博. 基于逐差法推算液体表面张力系数的不确定度 [J]. 大学物理实验, 2022, 35(4): 108-110.
[3]	赫文豪 , 李帅霖 , 付楷涵 , 李懂文 . 拉脱法测量液体表面张力系数的误差分析 [J]. 大学物理实验, 2022, 35(1): 104-109.
[4]	房若宇 , 薛迪烜 , 谢涛 , 薛唯琛 , 徐天乐 , 杨沛霖 , 杨淇森. 拉脱法测量液体表面张力系数的拓展性研究 [J]. 大学物理实验, 2022, 35(1): 30-33.
[5]	姚星星, 王宙洋. 拉脱法测量液体表面张力系数实验结果分析 [J]. 大学物理实验, 2022, 35(1): 115-118.

[1]	. [J]. Physical Experiment of College, 2020, 33(1): 0 .
[2]	. [J]. Physical Experiment of College, 2020, 33(1): 0 .
[3]	WU Ming, ZENG Hong, ZHANG Wenpeng, ZHANG Yuanwei, DAI Zhenbing. Theoretical and Experimental Research of A zimuthal-Radial Pendulum [J]. Physical Experiment of College, 2020, 33(1): 1 -6 .
[4]	LIU Weiwei, SUN Qing, LIU Chenglin. Research on Selection of Critical Magnetization Current for Measuring Charge-Mass Ratio of Electron by Magnetron Controlling [J]. Physical Experiment of College, 2020, 33(1): 7 -9 .
[5]	DENG Li, LIU Yang, ZHANG Hangzhong, ZHOU Kewei, ZHAO guoru, WEI luanyi. MATLAB simulation of Fourier transform of Gaussian beam and the spatial filtering effects basing on 4F optical imaging system [J]. Physical Experiment of College, 2020, 33(1): 10 -16 .
[6]	MA Kun. Experiment Study on the Measuring Young' s Modulus by Stretching [J]. Physical Experiment of College, 2020, 33(1): 17 -20 .
[7]	FEI Xianxiang, CHEN Chunlei, WANG Wenhua, SHI Wenqing, HUANG Cunyou. Design of Lens Group Focal Length Measurement System Based on Object-Image Parallax Comparison [J]. Physical Experiment of College, 2020, 33(1): 21 -24 .
[8]	LI Chunjiang, LI Luyu, YANG Jinglei, LI Tingrong, XIANG Wenli. A New Method for Simple and Rapid Measurement of Refractive Index [J]. Physical Experiment of College, 2020, 33(1): 25 -28 .
[9]	WANG Cuiping, YAO Mengyu, YE Liu, LI Aixia, ZHANG Ziyun, DAI Peng. Progress and Applications of Electron Spin Resonance in Biology [J]. Physical Experiment of College, 2020, 33(1): 29 -33 .
[10]	CHEN Yingmo, SHEN Siyi, WANG Jie. Study on the Characteristics of Silicon Photocells [J]. Physical Experiment of College, 2020, 33(1): 34 -36 .