AC源的随机抽样：教授概率观测的工具
Random sampling of an AC source: A tool to teach probabilistic observations
摘要：
描述了一个本科水平的实验，以证明概率观测在物理学中的作用。电容器和直流电压表用于对交流电压源进行随机采样。分析所得到的概率分布以提取关于AC源的信息。不同的特征概率分布所产生的各种交流波形的计算和实验测量。在一定的限制条件下，从测量的概率分布的交流波形的重建证明。结果还与模拟数据样本进行了比较。我们建议这作为一种教学工具，教概率测量和他们的操纵。
英文摘要：
An undergraduate level experiment is described to demonstrate the role of probabilistic observations in physics. A capacitor and a DC voltmeter are used to randomly sample an AC voltage source. The resulting probability distribution is analyzed to extract information about the AC source. Different characteristic probability distributions arising from various AC waveforms are calculated and experimentally measured. The reconstruction of the AC waveform is demonstrated from the measured probability distribution under certain restricted circumstances. The results are also compared with a simulated data sample. We propose this as a pedagogical tool to teach probabilistic measurements and their manipulations.
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