| 李沙如曲线测量电信号频率的误差分析 |
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| 引用本文： | 林洪文.李沙如曲线测量电信号频率的误差分析[J].西南科技大学学报,2005,20(1):78-80. |
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| 作者姓名： | 林洪文 |
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| 作者单位： | 西南科技大学理学院,四川,绵阳,621010 |
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| 摘 要： | 从李沙如曲线测量未知电信号的频率实验中，正弦信号的幅度、频率、相位的波动入手进行分析，找出了误差产生的原因和相对误差大小的确定方法。
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| 关 键 词： | 电信号 频率 误差分析法 幅度比 相位差 旋转周期 李沙如曲线 测量方法 |
| 文章编号： | 1671-8755(2005)01-0078-03 |
| 修稿时间： | 2004年12月1日 |
The Error of the Measurement of Electric Signal Frequency by Lissajou Figure and Its Analysis |
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| Lin Hongwen.The Error of the Measurement of Electric Signal Frequency by Lissajou Figure and Its Analysis[J].Journal of Southwest University of Science and Technology,2005,20(1):78-80. |
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| Authors: | Lin Hongwen |
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| Abstract: | The fluctuations are analyzed in amplitude, frequency, and phase of the sinusoidial signal in the experiment of the measurement of the frequencies of the unknown electrical signals by means of Lissajou figure , the causes of the error investigated and the methods to determine the relative error value found out. |
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| Keywords: | Lissajou figure frequency ratio amplitude ratio phase difference rotary period |
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