基于光功率计监视的杨氏模量测量及不确定度分析

doi:10.14139/j.cnki.cn22-1228.2022.02.022

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摘要

分析了基于传统光杠杆放大法测量金属丝微小伸长量的杨氏模量的不确定度，发现由于标尺的精度低和操作繁琐造成学生实验疲劳，是引起测量精度低的主要原因。为此，本文设计了一种基于光功率计监视的新型实验装置，不仅简化了操作，而且提高了测量精度，可以使杨氏模量的测量相对不确定度达到3.21％。

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	张胜海
	杨晓娜

关键词: 杨氏模量静态拉伸法光功率计不确定度分析

Abstract:

It is analyzed for the uncertainty of the measurement of small elongation based on traditional optical lever method.The results showed that the main cause of low measuring precision is the low accuracy of the scale and the intricacy for the operation.It designs a new experiment device based on optical power meter to monitor,which can simplify the operation and improves the accuracy of measurement.The experimental results have shown that the relative uncertainty of young’s modulus measurement up to 3.21%.

Key words: Young’s modulus static stretching method optical power meter uncertainty analysis

出版日期: 2022-04-25 发布日期: 2022-04-25 整期出版日期: 2022-04-25

ZTFLH:

O 4-33

引用本文:

张胜海, 杨晓娜. 基于光功率计监视的杨氏模量测量及不确定度分析 [J]. 大学物理实验, 2022, 35(2): 102-105.
ZHANG Shenghai, YANG Xiaona. Study on the Method and Uncertainty Analysis of Measuring Young s Modulus Based on Optical Power Meter . Physical Experiment of College, 2022, 35(2): 102-105.

链接本文:

http://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2022.02.022 或 http://dawushiyan.jlict.edu.cn/CN/Y2022/V35/I2/102

[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 .