| 利用CCD光电测量系统测量杨氏弹性模量 |
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| 引用本文： | 李泽涛,汪涛,陶纯匡. 利用CCD光电测量系统测量杨氏弹性模量[J]. 大学物理, 2006, 25(1): 47-49 |
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| 作者姓名： | 李泽涛 汪涛 陶纯匡 |
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| 作者单位： | 1. 涪陵师范学院,物理系,四川,涪陵,408003
2. 重庆大学,数理学院,重庆,400044 |
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| 基金项目： | 重庆市教委项目基金资助项目(041303) |
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| 摘 要： | 提出一种测量微小伸长量的光电测量方法,即利用CCD光电测量系统将单缝衍射的光强分布转换为电信号,经过计算机处理后输出光强分布曲线,从相邻波谷读出衍射条纹间隔,通过软件的简单操作直接输出测量结果.实现了数据采集及运算结果的实时化、半自动化,并克服了传统方法的测量困难和数据处理的复杂计算.利用这一方法测定了钢丝的杨氏弹性模量,与标称值符合得较好.
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| 关 键 词： | 单缝衍射 杨氏弹性模量 CCD |
| 文章编号： | 1000-0712(2006)01-0047-03 |
| 收稿时间： | 2005-05-09 |
| 修稿时间： | 2005-09-20 |
Measuring Young''''s modulus of materials using CCD |
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| LI Ze-tao,WANG Tao,TAO Chun-kuang. Measuring Young''''s modulus of materials using CCD[J]. College Physics, 2006, 25(1): 47-49 |
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| Authors: | LI Ze-tao WANG Tao TAO Chun-kuang |
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| Affiliation: | 1. Department of Physics, Fuling Teachers College, Fuling, Siehuan 408003, China; 2. College of Mathematics and Physics,Chongqing University, Chongqing 400044, China |
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| Abstract: | A new method of measuring small extention is put forward.The light intensity of single slit(diffraction)(is) converted to electric signal by CCD photo-electric measuring system and outputs curve of light(intensity)(distribution) after computer processing.Read the interval of diffraction marking from adjacent wave(through)(and) output results through simple operation of software.It implements date acquisition and operation(results)(real-timely) and semiautomaticly.It overcomes the difficulty of conventional measurement method and(complex) calculation of date-processing.The Young's modulus of elasticity is measured by this method and(the)(results) agree with the nominal value very well. |
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| Keywords: | single slit diffraction Young's modulus CCD |
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