脉冲宽度

The number of the spectral switches decreases with decreasing obscuration ratio,and the relative spectral shifts at the spectral switches increases with decreasing carrier frequency and pulse width.

光谱开关的数目随遮拦比的减小而减小，而发生光谱开关处的相对光谱移动随载波频率和脉冲宽度的减小而增加。

The MAX483MJA is an integrated Pulse Width Modulation controller and Sense FET specifically designed for Quasi-resonant off-line Switch Mode Power Supplies with minimal external components.

该MAX483MJA是一家综合脉冲宽度调制控制器和感场效应管专为准谐振离线开关电源设计的最少的外部元件。

The switches are driven out of phase and pulse-width modulated to regulate the output voltage.

开关的驱动不同相，进行脉冲宽度调制以调节输出电压。

The high power diode end-pumped Q-switched Nd:YVO_4/KTP red laser was demonstrated by using a simple plano-concave cavity. At the repetition rate of 15kHz, the maximun average output power of 1.37W was attained, with the corresponding pulse width of 33ns.

采用简单的平凹腔结构以及KTP倍频晶体实现了全固态高功率Nd：YVO_4/KTP腔内倍频671nm红光输出，其最大平均输出功率为1.37W，相应的重复频率和脉冲宽度分别为15kHz和33ns。

Because the formula of output voltage is the same as the one using other methods,the pulse width can be ascertained by choosing time constant based on the relation between voltage and current,and the proportional counter tube can be applied to different count ratio.

所得的输出电压的表达式与应用其他方法所得出的结果相同，因此可根据输出电压的波形与电路时间常数的关系，选择时间常数以确定输出脉冲宽度，使正比计数管适用于不同的计数率。

Output was 200 KW pulses, 2 usec pulse length, at 515 MHz.

它可发射功率为200KW脉冲宽度为2 usec频率为515MHz的电波。

Utilize mathematical operation of the one-chip computer and control the function, combine the digital circuit of some scale of China, have realized the producing of variable frequency sinusoidal wave and the measurement of frequency , cycle , width of pulse to the signal ,etc.

利用单片机的数学运算和控制功能，结合部分中规模数字电路，实现了一些波形的输出，及对信号的频率、周期、脉冲宽度等的测量，使用单片机使整个系统具有极为灵活的可编程性，能方便地对系统进行功能扩展与改进。

According to change the parameter of the power cables (power cables length, account step, impulse width, fault location).

通过改变仿真中的参数(电缆长度、剖分段数、脉冲宽度、计算步长、故障点位置)，来比较得到的仿真波形，计算故障点的距离，并从仿真图形中总结出波形的规律。

The parameters including cable length, number of unite divided, impulse width, account step and fault location are changed to get different waves. Compare these simulation waves and calculate the distance of fault point.

通过改变仿真中的参数(电缆长度、剖分段数、脉冲宽度、计算步长、故障点位置)，来比较得到的仿真波形，计算故障点的距离，并从仿真图形中总结出波形的规律。

The numerical calculations under relativistic correction and non-relativistic correction show that the difference of the deflection distances is about 61.4 mm,and the difference of the electron pulse widths is about 65 fs.

计算结果显示，在忽略了电场的边缘效应等因素后，电子束轴向速度的相对论修正与否对偏转距离和电子束脉冲宽度的影响分别达到61.4 mm和65 fs。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。