单相

A calibration system for single phase electric energy meter is introduced,which is controlled by PC based on windows.

介绍一种以Windows为软件平台的程控式单相电能表检定系统。

On the railway of electrization, power supply mode is requested to be the single-phase alternating current.

在铁道电气化牵引区段，牵引供电网采用单相工频交流电供电方式。

First, the essay introduces the generation process and the features of the Ferromagnetic resonance through the example of single resonance, and takes them as the guidance for the elementary course of circuit.

首先文章以单相谐振为例介绍了铁磁谐振的产生和特点，把它们作为三相铁磁谐振的电路入门的向导。

So it could be predicted that single phase high power factor and its combination with some advanced control algorithms could have a comprehensive implicating future.

可以预见，单相高功率因数整流技术及其与各种先进控制算法的不断结合，必将具有十分广泛的应用前景。

It tells about the tingling and creepage in one - way circuit equipment and analyses the cause of electrified outer covering (faradism、 creepage ),the difference of their normal and abnormal electrification,and ways to remove electrification in outer covering (meet cipher protect、earth protect).

介绍了单相用电设备的麻电和漏电现象，分析设备外壳带电的原因(两种情况：感应电，漏电)，外壳正常带电和非正常带电的区别，以及消除外壳带电的措施和方法。

According to Bessel function and Fourier series theory, generation, magnitude and distribution of voltage harmonic generated by single-phase two-level SPWM inverter and three-phase SPWM inverter are analyzed and calculated particularity and concretely in allusion to inverter-motor system.

然后针对逆变器-电动机系统，利用贝塞尔函数和傅里叶级数理论，分别对单相二阶SPWM逆变器和三相SPWM逆变器的输出电压谐波的产生、大小和分布进行了细致而具体的分析和计算。

This paper analyses fundamental of general thyristor single phase bridge half controlled rectifier and draws work wave of each part. to avoid out of control, the freewheel diode is added, the work wave is analyzed.

本文从常规的晶闸管单相桥式半控整流电路着手，分析其电路工作原理和各部分工作波形，为避免失控，在电路中添加续流二极管，并分析了相应的各部分波形。

This design paper introduced one kind based on the DSP chip entire numerical control single-phase frequency changer design, along with the frequency conversion velocity modulation technology unceasing development, the frequency changer application is more and more widespread, the frequency changer besides has the remarkable velocity modulation performance, but also has the remarkable energy conservation function, is the enterprise technological transformations and the

本设计论文介绍了一种基于DSP芯片的全数字控制单相变频器的设计，随着变频调速技术的不断发展，变频器的应用越来越广泛，变频器除了具有卓越的调速性能之外，还有显著的节能作用，是企业技术改造和产品更新换代的理想调速装置。

This design paper introduced one kind based on the DSP chip entire numerical control single-phase frequency changer design, along with the frequency conversion velocity modulation technology unceasing development, the frequency changer application is more and more widespread, the frequency changer besides has the remarkable velocity modulation performance, but also has the remarkable energy conservation function, is the enterprise technological transformations and the product renewal ideal speeder.

本设计论文介绍了一种基于DSP芯片的全数字控制单相变频器的设计，随着变频调速技术的不断发展，变频器的应用越来越广泛，变频器除了具有卓越的调速性能之外，还有显著的节能作用，是企业技术改造和产品更新换代的理想调速装置。

Firstly, the gaseous turbulence statistics of single phase flow, derived from PIV data, were compared with documented DNS results, and it demonstrated the feasibility of turbulence measurement using PIV technology.

本文首先比较了采用传统PIV算法测量的单相湍流统计量与文献中直接数值模拟的结果，证明了PIV测量流场湍流量的可行性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。