正弦交流 meaning in English
simple alternating current
Examples
- Because frequency - shift signal is a kind of modulation signal , it ' s waveform is two ac sine signal of alternating i . e . upper frequency and lower frequency which was generated by low frequency modulating middle frequency
由于移频信号是一种调频信号，其波形为低频信号调制中心载频信号后产生的低端载频（下边频）和高端载频（上边频）两个交替变化的正弦交流信号。 - In this paper , the study method is adopted for employing matlab to simulate the transition feature of track circuit , the steady - state response of track circuit is simulated when the alternative sine wave signal is inputted , and the corresponding results are interpreted
城市轨道交通的迅速发展要求对轨道电路的特性有深入的了解。本文采用matlab软件模拟轨道电路的传输特性，对轨道电路在正弦交流输入下的稳态响应进行了仿真，得到了相应的的仿真结果和曲线图。 - The prototype test results indicate : voltage mode and current mode ac - ac mode ac / ac converters with high frequency link have the advantages such as high frequency electrical isolation . simple topology , two - stage power conversions , high power density , bidirectional power flow , good line current waveform , no audio noise , high converting efficiency , and high input power factor etc . this kind of converter lay the key technical foundation on new type regulated sinusoidal ac power supply , electronic transformer , ac regulator , and wave converter etc
试验表明，这类变换器具有高频电气隔离、电路拓扑简洁、两级功率变换( lfac hfac lfac ) 、功率密度高、双向功率流、无音频噪音、变换效率高、网侧功率因数高等优点。为新一代正弦交流稳压器、电子变压器、交流调压器、同频波形变换器的实现奠定了关键技术基础。