| 非同步交流采样的测量与计算 |
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| 引用本文： | 许胜辉.非同步交流采样的测量与计算[J].武汉职业技术学院学报,2011,10(1):69-71,82. |
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| 作者姓名： | 许胜辉 |
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| 作者单位： | 武汉职业技术学院电子信息工程学院,湖北,武汉,430074 |
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| 摘 要： | 对交流（AC）信号进行同步采样,如电网电压和有功功率均方根值,为了测量计算的非同步交流信号（在文10-61]的部分）。提出了一种估值测量的数学表达式,它可测量非同步基频交流信号。用该方法测量的结果与高精密仪器测量的结果进行了比较。最后通过仿真实验证实了此方法的有效性和实用性。
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| 关 键 词： | 测量的不确定性 数学表达式 同步采样 交流信号 非同步 均方根（RMS） |
Calculation of Measurement Nonideal Synchronization Sampled AC Signals |
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| XU Sheng-hui.Calculation of Measurement Nonideal Synchronization Sampled AC Signals[J].Journal of Wuhan Institute of Technology,2011,10(1):69-71,82. |
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| Authors: | XU Sheng-hui |
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| Institution: | XU Sheng-hui(College of Telecommunication Engineering,Wuhan Polytechnic,Wuhan 430074,China) |
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| Abstract: | Synchronous sampling allows alternating current（AC） quantities,such as the root mean square（RMS） values of voltage and power,to be determined with very low uncertainties（on the order of a few parts of 10？6 1]）.In this paper,a mathematical expression for estimating measurement uncertainties in nonideal synchronization with fundamental frequency AC signals is presented.The obtained results were compared with those obtained by measurements with a high-precision instrument used for measuring basic AC values. |
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| Keywords: | Measurement uncertainties mathematical expression synchronous sampling AC signals nonideal synchronization root mean square(RMS) |
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