| 动态法测杨氏模量共振频率的拟合研究 |
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| 引用本文： | 何熙起.动态法测杨氏模量共振频率的拟合研究[J].内江师范学院学报,2010,25(10):37-39. |
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| 作者姓名： | 何熙起 |
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| 作者单位： | 内江师范学院物理与电子信息工程学院,四川内江641112 |
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| 摘 要： | 分析讨论了动力学法测杨氏模量基频固有频率的最小二乘法拟合,指出在笔者采用数据的试验条件下,拟合多项式的幂次以3~4次为宜.
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| 关 键 词： | 杨氏模量 动力学法 固有频率 节点 多项式拟合 |
A Fitting Study of Measuring Young's Modulus Resonance Frequency with a Dynamic Approach |
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| HE Xi-qi.A Fitting Study of Measuring Young's Modulus Resonance Frequency with a Dynamic Approach[J].Journal of Neijiang Teachers College,2010,25(10):37-39. |
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| Authors: | HE Xi-qi |
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| Institution: | HE Xi-qi(School of Physics and Electronic Information Engineering,Neijiang Normal University,Neijiang,Sichuan 641100,China) |
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| Abstract: | The least squares fit in measuring the natural frequency of Young＇s modulus is studied by method of dynamics.It is pointed out that it is most suitable when the power of a fitting polynomial equals 3-4. |
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| Keywords: | Young＇s modulus method of dynamics natural frequency nodal point polynomial fit |
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