| 采用多点平均提高扭振A/D采样法精度 |
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| 引用本文： | 汤志华,董大伟,闫兵,华春蓉.采用多点平均提高扭振A/D采样法精度[J].车用发动机,2005(3):59-61,65. |
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| 作者姓名： | 汤志华 董大伟 闫兵 华春蓉 |
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| 作者单位： | 西南交通大学机械工程学院,四川,成都,610031;西南交通大学机械工程学院,四川,成都,610031;西南交通大学机械工程学院,四川,成都,610031;西南交通大学机械工程学院,四川,成都,610031 |
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| 摘 要： | 为降低采用A/D采样技术进行扭振测量时采样频率或干扰信号等对测量精度的影响,提出了一种采用相邻电压脉冲信号间多点平均的方法消除随机误差。介绍了多点平均方法的原理,以标准信号和工程实际信号的应用研究验证了所述方法的实用性和可行性。
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| 关 键 词： | 扭振测量 多点平均 测量精度 随机误差 |
| 文章编号： | 1001-2222(2005)03-0059-03 |
The New Method of Study to Advance A/D Precision of Torsional Vibration |
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| TANG Zhi-hua,DONG Da-wei,YAN Bing,HUA Chun-rong.The New Method of Study to Advance A/D Precision of Torsional Vibration[J].Vehicle Engine,2005(3):59-61,65. |
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| Authors: | TANG Zhi-hua DONG Da-wei YAN Bing HUA Chun-rong |
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| Abstract: | Precision would be influenced due to low sample frequency or interfering signal in the application of A/D method. Thus, a multi-point average method within neighboring voltage impulse signal has been raised to eliminate random error to get a better precision. The paper introduces the principle of multi-point average method and prove the method applicable and feasible according to the application of standard signal and practical signal in engineering. |
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| Keywords: | measurement of torsional vibration multi-point average measurement precision random error |
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