方波

In the light of the trapezoidal back electromotive force and square phase current of brushless DC motor,a novel strategy of matrix converter driving BLDCM is presented in this paper.

针对无刷直流电机反电势为梯形波、相电流为方波的特点，提出一种用于驱动无刷直流电机的矩阵变换器的控制策略。

Standard waveforms include: sine, square, triangle, dc, positive ramp, negative ramp, sine/x, pulse, pulse train, cosine, haversine and havercosine.

标准波形包括：正弦波，方波，三角特区，积极坡道，消极坡道，正弦/十，脉冲，脉冲，余弦， haversine和

It switches at a pulse with a duty cycle of 50%,the output voltage is regulated via controlling the on-resistance of the regula...

它工作在占空比为50%的方波信号下，具有很低的输出电压纹波(37mV)。

For the robust performance test, the sine or square wave is added on the operating point to be viewed as the external disturbance.

在直流工作点加入弦波或方波当作干扰，铁球皆能稳定地磁浮於空中，展现出系统的强健性能。

By the research of the RLC series circuit, RLC Parallel circuit, and the starat of Fourier Series, get the further understanding and grasp the characteristics of the resonant of RLC circuit. Even more, on the basis of the RLC series resonance, the other circuit structures selected frequency wave frequency analysis of the election.

本实验通过对RLC串联电路、并联电路及方波的傅立叶级数展开的实验现象的测量及研究，进一步了解和掌握RLC谐振电路的特点，并在RLC串联谐振的基础上，搭建选频电路对方波进行选频分析。

Have originally designed of variable frequency sinusoidal wave generator 、 the frequency of measurements, and the interval between cycles of equipment.

本设计以单片机为核心设计了一种可变频率的方波、正弦波的发生器，并可测量频率、周期和时间间隔的仪器。

The relative satisfactory results of evaluating the peak height could be achieved by using the graphical measures established on this appropriate baseline in the case of different dilations or resolutions, degrees of separation and parameters of the peak.

基于小波变换是线性变换，提出了一种小波变换用于双组分重叠方波伏安信号定量分析的新的基线选取方法，(1)通过该基线建立的定量测量方法在不同尺度或不同分解次数，不同分离度以及不同峰参数的影响下，均可得到比较满意的峰高定量结果。

The latter could generate sin-waves,square-waves and trianglular-waves.Some could generate more than three waveshapes.

后者能产生正弦波、方波和三角波，也有的能产生三种以上波形。

This article introduced based on the Labview8.0hypothesized sine, the cosine, the square-wave, the saw-tooth wave,the triangle wave signal generating device realization May accordingto the need, the change profile frequency and the peak-to-peak value,preserves the profile the analysis parameter to assign the document,and introduced based on the USB data acquisition card dummy signaloutput LabVIEW,虚拟仪器,保存数据,信号发生器 LabVIEW, the hypothesized instrument, preserves the data, the signalgenerating device

本文介绍了基于Labview8.0的虚拟正弦，余弦，方波，锯齿波，三角波信号发生器的实现。可以根据需要，改变波形的频率和幅值，保存波形的分析参数到指定文件，并介绍了基于USB数据采集卡的虚拟信号输出。关键字：LabVIEW，虚拟仪器，保存数据，信号发生器问题补充：请不要直翻，中国式英语我不要。逐词翻译组成的句子我也会。我只要正确的翻译。不是正确回答不要打扰

Code waveform generator can produce square wave, sawtooth, triangle wave.

详细说明：波形发生器的代码，可以产生方波，锯齿波，三角波。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。