周期性任意波形电功率测量中采样次数研究

The Study of Sample Frequency in Measuring Periodically Arbitrary Waveform Power

对于周期性任意波形电功率的测量,许多新的仪器仪表中采用微机控制的采样叠加法测量,但对采样次数 N的选择一般缺少完整的理论依据.本文对采样次数 N 的选择以及与误差之间的关系进行了理论分析,所得到的结论具有一定的理论价值和实际意义.

For periodically arbitrary waveform power , the major measuring method issampling and adding up based on micro-controller in many new instruments , but the sample frequency, the relation between sample frequency and error are seldom assayed from theory, it is done in the paper, the conclusion has certain theoretical value and actual meaning.