简易LCR测试仪电路原理

简易LCR测试仪电路的原理是利用振荡电路将电阻、电容的测量转变为与之成一定函数关系频率的测量，再利用单片机对不同频率进行测量和处理，最后用数码管显示被测量的大小。该测试仪可以利用按键对被测量类型进行选择。测量电阻范围为≤1MΩ，测量电容范围为≤10000pF，测量精度小于±5%。\[3\]
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