Phase lock and multiple frequency circuit diminishes the influence from frequency fluctuation of electric net ; in addition , multiple channels simultaneous sampling , high - precision circuit decreases the error caused from the sampling tache 用鎖相倍頻跟蹤電路來提供采樣頻率,以減少頻率波動的影響,用多路同采的高精度采樣電路來減少采樣環(huán)節(jié)引入的誤差。
At the same time , with the rapid development of electric power industry , stabile power quality issues , such as voltage fluctuation and flicker , frequency fluctuation , harmonics , have increasingly captured considerable attention from utility companies and their customers 同時,隨著電力工業(yè)的快速發(fā)展,穩(wěn)態(tài)電能質(zhì)量問題如電壓波動、頻率波動、諧波等,已經(jīng)引起了足夠的重視。