Nanosecond pulsed generator with regulable pulse width;
脉宽可调纳秒脉冲产生器
This paper researches how to influence length and width of deposit layer when changing laser pulse width,laser repetitive frequency,powder feeding rate and laser scanning velocity.
进行了激光熔化沉积成形GH163高温合金粉末条状试样实验,研究了激光脉宽、激光重复频率、扫描速度、送粉速率四个工艺参数对条状试样熔宽和熔高的影响。
Under the condition of gain saturation,the effects of cross-gain modulation(XGM) on transmission pulses and the transmission characteristics of optical pulses were analyzed,and the influences of pulse widths on the gain,carrier density and carrier lifetime were discussed.
为了验证线性光放大器的性能,建立了光脉冲在LOA中传输的理论模型,分析了放大器处于增益饱和状态下交叉增益调制效应对传输脉冲的影响、脉冲在LOA中传输的特性,以及不同脉宽对于增益、载流子密度和寿命的影响。
To solve the shortages of pulse-width modulation(PWM) control by CPU,a control method of DC motor by PWM based on field programmable gate array(FPGA)is presented.
针对基于CPU的脉宽调制控制的不足,给出一个基于FPGA的脉宽调制直流电机控制方案,提出FPGA电机控制电路和数字比较器的VHDL设计方法。
The relationship between diameter of craters and pulse-width of the discharge is reached.
从机理上讨论了激光诱导放电采用阴极性放电可改善放电坑形貌,并从实验上得出放电坑直径在不同放电介质下随放电脉宽的变化关系。
Fatigue tests are carried out under different frequency and pulse-width,and it comes to the conclusion that anti-fatigue property can be.
通过不同频率和相同频率不同脉冲宽度条件下疲劳特性的测试 ,观察到随着测试频率的升高 ,抗疲劳特性也随之提高 ;在相同频率下 ,随着测试脉宽的加大 ,疲劳现象加剧 ;同时 ,结合缺陷对载流子的俘获和带电氧空位的迁移理论很好地解释了上述现
In order to meet the demand of the developing femtosecond laser techniques and integrated optics, to resolve the problems of group velocity mismatching, pulse spreading etc in the β-BaB2O4 (β-BBO) single crystals which caused by the thickness, the preparation techniques of β-BBO films have been studied.
为了满足飞秒超快激光技术和集成光学发展的需要、解决βBaB2O4(βBBO)体单晶中因厚度带来的群速度失配问题以及脉宽展宽等问题,人们开始了βBBO薄膜的制备技术研究。
In this paper, we mainly study on a kind of high-voltage pulser with low jitter, wide pulse width and fast front and back pulse edge, which is based on high-voltage power MOSFET.
本文着重研究基于高压场效应管的低晃动、宽脉宽、快前沿及快后沿的高压快脉冲源。
AM transmitter with pulse duration modulation
脉宽调制式调幅发射机
trigger gate width multivibrator
触发脉宽多谐振荡器
pulse width modulated A/D converter
脉宽调制模数转换器
capstan PWM generator
主导轴脉宽调制发生器
Design of PWM in Pulse-width Speed Regulating System Controlled with Single Chip Microcomputer
单片机控制脉宽调速系统中脉宽调制器的设计
Influence to Radio Fuzes When Width of Ultra Band Spectra Electromagnetic Pulse Changed
超宽谱电磁脉冲脉宽变化对无线电引信的影响
Generating isolated broadband attosecond pulses with stable pulse duration in a non-colinear polarized two-color field
非平行偏振双色场驱动产生脉宽稳定的单个宽谱阿秒脉冲
Develop of Ultra Short Pulse Generator for Micro-EDM;
微细电火花加工超短脉宽脉冲电源的研制
Research on Bidrectional Narrow Pulse Generator of Non-Resistance for WEDM;
往复走丝线切割窄脉宽无阻脉冲电源的研究
Block Decision Feedback Equalization of PPM+PWM Modulated Signals
一种克服脉位脉宽信号码间干扰的均衡算法
The Dead-time Compensator Method for PWM Voltage Inverters based on the Pulse
逆变器脉宽调制中基于脉冲的死区补偿方法
pulse width type AFC circuit
脉宽式自动频率控制电路
impulse bandwidth
脉冲(频)带宽(度)
binary digit duratio
二进制数字脉冲宽度
PWMI (Pulse Width Modulated Inverter)
脉冲宽度调制变换器
asymmetrical P.D. modulation
不对称脉冲宽度调制
The arterial pulse pressure in aortic insufficiency is widened.
主动脉瓣闭锁不全时脉搏压变宽。
Generation of Broad Band Microwave Pulses by Ultrashort Optical Pulses
利用超短光脉冲产生宽频带微波脉冲