The front panel controls allow the user to set pulse width and frequency independently, or to set frequency and duty cycle, which then sets the pulse width accordingly.
前面板控制允许用户设置脉冲宽度与频率或先设置频率与占空因数，再设置脉冲宽度。
Pulse width Modulation device is a circuit which can produce square wave signal with fixed period and adjustable pulse duration ratio (pulse width).
脉宽调制器是一种能够产生周期固定而占空比(脉宽)可调的方波信号的电路。
The experimental results show that a bigger diffraction efficiency delay rate can make the establishing time of the laser pulse and the pulse width shorter, and make the peak power higher.
实验结果表明，在一定范围内增大衍射延迟速率可以缩短脉冲建立时间，缩短脉冲宽度，增加峰值功率。
And pulse width signal is sent to SD-M-3002 special circuit, to complete such controls as counting, decoding, pulse distribution, etc.
并将脉冲宽度信号送至SD-M - 3002专用电路完成计数、译码、脉冲分配等控制。
Nowadays, the optical pulse used in the OTDM system is often generated by the gain-switched distributed-feedback (GS-DFB) semiconductor laser, which has a large pulse width and negative chirp.
目前常采用GS-DFB半导体激光器作为OTDM系统的光脉冲源，这种脉冲源产生的光脉冲一般较宽。
Formulas are derived for the ensemble average of the pulse power and the RMS pulse width.
得到了在光纤中传输的脉冲光功率的系综平均值和输出脉冲宽度的均方根值的近似解析公式。
This synchronization control set can improve its imaging quality and its action distance by conveniently adjusting the pulse delay and the pulse width.
这种同步控制装置能方便地通过调整脉冲延时和脉宽来提高系统成像质量和作用距离。
Pulse voltage, pulse width, preset DC bias, and bias time can be defined by user.
脉冲的电压，宽度，预设直流偏压和偏置时间可以由用户设定。
In this method the main part of the pulse width is measured by counter, and the odd of the pulse width is measured by time-voltage conversion method.
该方法以计数器法测取脉冲的主体宽度，用时间-电压转换法测取脉冲的零头时间，并以此作为量化误差的校正值。
It introduces a digital cymometer which has the functions of frequency measuring, pulse cycle measuring, pulse width measuring and pulse signal ratio measuring.
介绍了具有频率测量、脉冲周期测量、脉冲宽度测量以及脉冲信号占空比测量等功能的数字频率计。
Change the inverter output voltage or output current are two kinds of different ways, namely, PAM pulse amplitude modulation control and PWM control pulse width modulation.
改变变频器的输出电压或输出电流有二种不同的方法，即PAM脉冲幅值调制控制和PW M脉冲宽度调制控。
The pulse frequency can be selected by EPLD. The voltage amplitude and pulse width of analog pulse can be adjusted by analog switches and digitally controlled potentiometers.
频率通过用可编程器件EPLD控制，而脉冲信号的宽度和幅度通过多路模拟开关和数字电位器调节。
When Q-switch and gain switch were applied the peak pulse power was increased and pulse width decreased.
利用增益开关和Q开关双机制作用，压窄了调Q脉宽，提高了输出功率。
System reliability can thus be enhanced by increasing minimum turn-on pulse width and turn-off pulse width, without decreasing system specifications.
因此可以通过增加最大、最小窄脉冲宽度提高系统的可靠性，而不影响系统的性能。
The pulse width adjustable pulse generators are usually used in accurate measurement.
脉宽可调的脉冲发生器常用于精密检测。
To meet with the requirement of PECF finishing, pulse power source with high frequency, narrow pulse width and high current is designed.
为了满足螺旋锥齿轮等大型零件的脉冲电化学光整加工的要求，设计了高频、窄脉宽、大电流的脉冲电源。
This controller integrates pulse width modulation(PWM) and pulse density modulation(PDM) together, and can easily change between the two modulations.
该设计集成了脉冲宽度调制（PWM）和脉冲密度调制（PDM）两种调制方式，并可以在两者间切换。
It can reduce the length of the pulse forming line on the premise of forming the same output pulse width to adopt a helical structure.
采用螺旋形结构的脉冲形成线能在形成同样脉冲宽度的前提下大大缩短形成线的长度。
We focus on the peak power, pulse width, extinction ratio of conversion optical pulse and the transmission property of conversion optical pulse in standard single mode fiber.
详细研究了反转光脉冲的峰值功率、脉冲宽度和消光比等重要物理参量以及反转光脉冲继续在常规单模光纤中传输时的演变特性。
The effect of wakefield, which depends on the initial pulse shape and width, leads to the asymmetry of pulse self phase modulation.
尾波场效应导致脉冲自相位调制的不对称性，其大小与初始脉冲形状和脉宽大小有关。
Frequency, current, voltage and pulse width of successive wave and intermittent wave were similar. Frequency, current, voltage and pulse width of sound electric wave changed continuously.
连续波与断续波（续波）的频率、电流、电压、脉冲宽度均相同，声电波的频率、电流、电压、脉冲宽度均为不断变化的。
In addition, the changes of the laser pulse width and pulse frequency to affect the weld width were investigated.
此外，对激光脉冲宽度及脉冲频率对焊缝宽度的影响作了深入研究。
The pulse width modulation character of voltage drive -type pulse width modulator TL494 is introduced. The applicable situation of TL494 in semi -bridge alternate switch power is also analyzed.
介绍了电压驱动型脉宽调制器件TL494的脉宽调制特性，并对其在半桥变换开关电源中的应用情况做了分析。
This research is aimed to get higher quality functions by use of single- chip processor and way of pulse frequency modulated (PFM) or pulse width modulated (PWM).
用单片机作为控制手段，采用脉冲调频（或调宽）方法，达到了较理想的控制品质。
When the pulse width is fixed, the time of collapse and revival period are reduced gradually with the increase of pulse width in the field.
而当脉冲宽度一定时，随着腔场的平均光子数的增大原子的崩塌时间和回复周期逐渐减小。
The end and side composite pumping is an effective way to raise the Q-switching peak power and to compress the pulse width of the Q-switched pulse in a DPL.
端-侧面组合抽运方案是提高DPL调Q脉冲峰值功率和压缩脉冲宽度的有效技术途径。
The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.
激光雷达系统的作用距离由下列因素决定：脉冲能量、脉冲宽度、光束发散角、大气衰减、目标反射率和接收机灵敏度等。
Introduces two usual remote control signal encoding methods: pulse width modulation, pulse space ratio modulation.
介绍了两种常用的红外遥控信号的编码方法：脉冲占空比编码调制，脉冲宽度编码调制。
Introduces two usual remote control signal encoding methods: pulse width modulation, pulse space ratio modulation.
介绍了两种常用的红外遥控信号的编码方法：脉冲占空比编码调制，脉冲宽度编码调制。
应用推荐