您要查找的是不是：
- square wave analyzer 方形波分析器
- Excellent staable are from Ac square wave, avoid high frequency hazard. 交流方波自稳弧性能优异,免除高频危害。
- The concept of square wave and EFT drive unit are introduced in this paper. 本文介绍方波信号发生器及场效应管驱动器的原理与设计。
- When the square wave signal pass the LPF,we can get the sine signal. 经过分析可知,检测过程中的低通滤波器对检测的精度和速度有重要影响。
- Introduce the principle of MOSFET AC square wave inverter power source. 介绍了MOSFET交流方波逆变电源的工作原理。
- Square waves, like sine waves, are periodic. 方波如正弦波一样是周期性的。
- As an example of the technique, let's compute the Fourier series which corresponds to a square wave. 作为这种方法的一个例子，让我们计算一个方波的傅里叶级数。
- For sine wave, triangle wave, and square wave, the good performance of current output is proved by experiments. 经过实验验证,对于正弦波、三角波和方波,负载输出电流波形跟踪良好。
- The signal thus received will no longer look like a square wave but will be distorted in shape and spread out in time. 这样收到的信号看起来不再象矩形波,而是受到畸变,并且持续时间延长了。
- When the actuator is actuated with a square wave, the corresponding mean velocities are 4.70m/s and 4.22m/s. 该致动器存在两个共振频率;在共振频率下工作;方波分别出现了4.;70m/s和4
- Method The root-mean-square(RMS)values of the HOA were measured with Allegretto wave analyzer before and 1 hour after nearwork,and the correlation of HOA values and the development of myopia were observed. 方法被检者近距离(20cm)阅读1小时,用Allegretto波前像差仪测量患者阅读前后的波前像差,观察高阶像差的变化,并与被检者一年中屈光度的变化做相关分析；
- In the square wave current welding,the inductance is very important to influence the fomation of square wave A. 在方波交流焊中，电抗器的电感量对方波的形成及电弧的稳定性有着很大的影响。
- The paper deals with the basic principles of the pulsed square wave AC MIG/TIG welding power source. 主要介绍双凹波形脉冲氩弧焊电源的工作原理。
- A device that generates high-frequency pulses(usually a square wave) for purposes of synchronization and event timing. 一种发生高频脉冲（通常是方波）的装置，以达到同步和事件定时的目的。
- Simulation results indicate that an input square wave can be tracked precisely using this feedforward controller. 仿真结果表明，该前馈控制器可以精确跟踪方波输入信号。
- A device that generates highfrequency pulses (usually a square wave) for purposes of synchronization and event timing. 一种发生高频脉冲(通常是方波)的装置,以达到同步和事件定时的目的。
- Standard output includes sine wave, square wave, inclined wave, noise wave, Sin(x)/x, true flow and other is undee. 客户未按照说明书要求，错误安装，保管及使用而造成的设备（包括部件）故障或损坏；
- Adjustable square wave generator, square wave to control the amplitude, frequency, duty cycle. 可调方波发生器，可以控制方波的幅值，频率，占空比。
- By using a square wave for ac-excitation, with the polarity of the excitation signal reversed between measurements, the induced dc errors can be effectively cancelled. 由使用一个方形波为交流励磁,与励磁信号在测量之间的极性扭转,被感应的直流误差可能被有效地消除。
- I hit him fair and square on the jaw. 我不偏不倚打中他的下巴。
