| 振动弦的“色散”实验研究 |
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| 引用本文： | 方天申. 振动弦的“色散”实验研究[J]. 物理实验, 2011, 31(12): 30-31 |
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| 作者姓名： | 方天申 |
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| 作者单位： | 信阳师范学院,河南信阳,464000 |
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| 基金项目： | 河南省科技厅自然科学基础理论项目 |
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| 摘 要： | 研究了有界弦横向强迫振动时弦上波速的色散现象.实验测量结果表明:由弦的张力和线密度决定的弦上的波速(T/ρ)~1/2不一定是常量,在一定的条件下,弦的波速会随着弦驻波的波长长度(弦长)改变而变化.
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| 关 键 词： | 色散 波速 弦驻波 |
Experiment study on the dispersion of string standing waves |
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| FANG Tian-shen. Experiment study on the dispersion of string standing waves[J]. Physics Experimentation, 2011, 31(12): 30-31 |
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| Authors: | FANG Tian-shen |
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| Affiliation: | FANG Tian-shen(Xinyang Normal University,Xinyang 464000,China)) |
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| Abstract: | An experimental study on the "dispersion" phenomena of string standing waves was carried out.The experimental results showed that wave velocity on a taut string(or wire) determined by T/ρ was not a constant.It might change with the wave-length or the length of a string. |
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| Keywords: | dispersion wave velocity string standing waves |
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