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利用８０３１ 单片机测量出电路的频率与相位差，结合电工原理自动测量算出Ｌ、Ｃ的精确值。分析了测量原理，给出了自动测量系统的软硬件框图。
8031 single-chip microcomputer using the circuit to measure the frequency and phase difference, combined with the principle of electrical measurements automatically calculate the L, C accurate value. The principle of measurement is analyzed and the hardware and software block diagram of the automatic measurement system is given.