说明：  使用labview7.1编写的一个简单的虚拟电能质量检测仪，监测参数包括电压偏差、频率偏差、频域谐波分析、电压波动、三相不平衡度等。
(Labview7.1 prepared using a simple detector of virtual power quality, monitoring parameters, including voltage deviation, frequency deviation, frequency-domain harmonic analysis, voltage fluctuations, such as three-phase imbalance.)