摘要
介绍了剩余电流检测的硬件基础,引入差分输入,去掉共模干扰,分析了快速傅里叶变换(FFT)算法在剩余电流检测上的应用,加强系统的抗噪声能力,提高系统的测试精度。
The hardware basis of residual current detection was introduced,which used the differential input to remove common mode interference.The application of fast Fourier transform(FFT)was analyzed in high precision residual current detection system.It strengthens the anti-noise capability of the system,and improves the test precision of the system.
作者
侯小虎
陈岳军
郭斌
HOU Xiaohu;CHEN Yuejun;GUO Bin(Xingtai Municipal Maintenance and Management Office,Xingtai 054099,China;Shanghai 50 Shengtong Information Technology Co.,Ltd.,Shanghai 200333,China)
出处
《现代建筑电气》
2019年第5期42-45,共4页
Modern Architecture Electric
