本简易电能质量检测装置由单片机控制模块，电源模块，信号变换与处理模块等构成。c8051F020为主控单片机，它能准确的完成同时对一路工频交流电的频率、电压有效值、电流有效值、有功功率、无功功率、功率因素等进行测量。通过软件对输入电压信号进行实时采样。系统调试时，用函数发生器输出正弦电压信号作为交流信号的电压信号输入，此电压信号经自制的移向电路相后代表同一路信号的电路信号输入。-This simple device consists of single-chip power quality detection control module, power module, signal conversion and processing module and other accessories. c8051F020 for the host microcontroller, it can accurately complete all the way while the frequency of alternating current frequency, voltage rms, current rms, active power, reactive power, power factor and other measurements. Software for real-time sampling the input voltage signal. System debugging, use the function generator output voltage signal as a sinusoidal voltage signal input AC signal, the voltage signal by the move made ​ ​ after the representatives of the same circuit with the circuit input signals.