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| 衍射法测量金属丝的杨氏模量 | |
| 引用本文： | 黄增光,马再超,卢佃清,李新华,王勇. 衍射法测量金属丝的杨氏模量[J]. 物理与工程, 2008, 18(5) |
| 作者姓名： | 黄增光 马再超 卢佃清 李新华 王勇 |
| 作者单位： | 1. 淮海工学院数理科学系,江苏,连云港,222005 2. 淮海工学院机械系,江苏,连云港,222005 |
| 基金项目： | 淮海工学院校科研和教改项目 |
| 摘 要： | 本文提出了一种新的测量金属丝杨氏模量的方法--夫琅禾费单缝衍射法.平行光遇到由金属丝被拉伸形变而形成的单缝,产生衍射,用CCD光强分布测量仪接收衍射光信号,用示波器定标方法测量衍射角,可以精确计算金属丝的杨氏模量.最后与普通光杠杆放大法比较,对可能引入的误差来源做了分析,结果证明,本方法测量精度更高、相对误差更小. |
| 关 键 词： | 杨氏模量 单缝衍射 CCD光强分布测量仪 示波器定标 |
YOUNG'S MODULUS MEASUREMENT FOR A WIRE WITH DIFFRACTION METHOD |
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| Huang Zengguang,Ma Zaichao,Lu Dianqing,Li Xinhua,Wang Yong. YOUNG'S MODULUS MEASUREMENT FOR A WIRE WITH DIFFRACTION METHOD[J]. Physics and Engineering, 2008, 18(5) | |
| Authors: | Huang Zengguang Ma Zaichao Lu Dianqing Li Xinhua Wang Yong |
| Affiliation: | 1 Department of Mathematics and Physics;Huaihai Institute of Technology;Lianyungang;Jiangsu 222005;2 Mechanical Department;Jiangsu 222005 |
| Abstract: | In this paper,we have proposed a new way,named Fraunhofer single-slit diffraction method,to measure the Young's modulus for a wire.When the parallel lights pass through the single-slit formed by the wire after drawing deformation,the diffraction happens.Using CCD light intensity distribution instrument to receive the diffractive light signal,and measuring the diffractive angular with the oscilloscope calibration method,we can accurately calculate the Young's modulus of the wire.Through the comparison with t... |
| Keywords: | Young's modulus single-slit diffraction CCD light intensity distribution instrument oscilloscope calibration |
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