| 横卧式杨氏模量与组装台秤实验仪的设计 |
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| 引用本文： | 李成龙,常芳锦,寿化杰,沈祺凯.横卧式杨氏模量与组装台秤实验仪的设计[J].大学物理,2021,40(4):15-18. |
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| 作者姓名： | 李成龙 常芳锦 寿化杰 沈祺凯 |
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| 作者单位： | 安徽理工大学力学与光电物理学院,安徽淮南 232001 |
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| 基金项目： | 安徽省省级质量工程项目(2017jyxm0184)资助。 |
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| 摘 要： | 通过对横向放置的钢丝进行受力分析,推导出其杨氏模量的测量公式,进而运用该公式对其杨氏模量进行实验测量.再用该杨氏模量值作为已知参数,利用该钢丝作为压力的应变传感器件,反向设计出一款简易台秤,推导出其测量公式,并用来测定未知物体的重力.此设计将传统的验证性实验项目拓展改进成设计性实验项目,减小了原实验误差,丰富了实验内容...
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| 关 键 词： | 杨氏模量 读数显微镜 台秤 |
Design of a horizontal Young's modulus instrument and assembling a platform scale |
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| LI Cheng-long,CHANG Fang-jin,SHOU Hua-jie,SHEN Qi-kai.Design of a horizontal Young's modulus instrument and assembling a platform scale[J].College Physics,2021,40(4):15-18. |
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| Authors: | LI Cheng-long CHANG Fang-jin SHOU Hua-jie SHEN Qi-kai |
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| Institution: | (College of Mechanics and Photoelectric Physics,Anhui University of Science and Technology,Huainan,Anhui 232001,China) |
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| Abstract: | Based on the stress analysis of steel wires placed horizontally,the measuring formula of the young's modulus is derived,and then it is measured experimentally.Using the value of young's modulus as a known parameter and steel wire as a strain sensor of the pressure,a simple platform scale is designed and its measuring formula is derived to measure the gravity of unknown object.Such a design makes the traditional confirmatory experiment improve to a designing experiment,reduces the experimental error and also enriches the experiment contents. |
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| Keywords: | young's modulus reading microscope platform scale |
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