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利用弦振动实验仪测量金属丝的杨氏模量
引用本文:刘艳峰. 利用弦振动实验仪测量金属丝的杨氏模量[J]. 延安大学学报(自然科学版), 2013, 32(1): 28-30
作者姓名:刘艳峰
作者单位:延安大学物理与电子信息学院,陕西延安,716000
基金项目:陕西省教育厅2011年科学研究项目计划,陕西省高水平大学建设专项资金资助项目,延安大学大学物理实验精品课程
摘    要:将弦线振动的研究规律与伸长法测量钢丝杨氏模量的原理相结合,设计出一种用弦振动仪测量金属丝杨氏模量的新方法。从测量结果可知,所测金属丝的杨氏模量与其标准值相比,误差非常小,说明利用文中的设计方案来测量金属丝杨氏模量确实可行,该方案一方面拓展了弦振动仪的使用,另一方面又为测量金属丝杨氏模量提供了一种新方法,具有一定的应用和参考价值。

关 键 词:弦振动实验仪  金属丝  杨氏模量

Measuring Young's Modulus of the Wire Based on Chord Vibration Device
LIU Yan-feng. Measuring Young's Modulus of the Wire Based on Chord Vibration Device[J]. Journal of Yan'an University(Natural Science Edition), 2013, 32(1): 28-30
Authors:LIU Yan-feng
Affiliation:LIU Yan-feng(College of Physics and Electronic Information,Yan an University,Yan an 716000,China)
Abstract:Combig the principle of the law of vibration of the strings and the elongation measurement wire Young~ modulus, A new method for measuring the ~oung's modulus of the wire was designed by a vibrating string instru- ment. The measurement results showed, compared to the measured wire, Young's modulus and its standard value, the error was very small, indicating that the text of the design indeed feasible to measure the Youngg modulus of wire, the program on the one hand to expand the vibrating string instrument use, on the other hand, the measurement of wire Young's modulus was a new method and had some application and reference value.
Keywords:vibrating string experiment instrument  wire  Young's modulus
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