查询词典 Pulse

High power and super-high speed semiconductor switch RSD has great advantages in pulse power system : simultaneous turn-on in all area, high di/dt, high speed, high power, low power loss, infinite series, easily used in series and parallel connection, low cost and long lifetime etc.

大功率超高速半导体开关RSD相对传统的半导体开关在脉冲功率领域具有显著的特点：全面积同步导通，di/dt高，开启速度快，开通延时几乎为零，功耗低，理论上可无限串联，串并联使用时触发相对简单，维护方便、成本低而且使用寿命长。

I never got over the romantic pull of Spain, the raw pulse of the land, the expansive, rugged spirit of the people, the haunting memories of the lost civil war, the Prado, the beauty of the Alhambra.

西班牙的浪漫情调让我这一辈子都没有忘怀：这块土地上原始的情感，人民们奔放粗犷的精神，挥之不去的对迷惑的内战的记忆，此外还有普拉多和美丽的阿尔罕布拉宫。

In this dissertation, a research has been made on Pulse Oxygen Saturation detecting module and the pre-amplifier circuit for detecting respiration, which will be used in Sleep Apnea Syndrome automatic monitoring and analysis system.

中文摘要：本文针对睡眠呼吸暂停综合症自动监测分析系统中血氧饱和度与呼吸信号的检测展开研究工作。

The optimal condition determined through the experiments are to prefabricate hole of 0.8mm diameter and 1.0mm depth,and collect the plasma radiation excited with second pulse,the laser spectra of higher property can be obtained.

实验确定的优化条件是，预制0.8mm直径和1.0mm深度孔穴，采集第二个脉冲激发的等离子体辐射，可以获得较高质量的激光光谱。

This paper introduces a new power supply of preignition for pulse xenon lamp.

本文介绍了一种新型的脉冲氙灯预燃电源，它利用三端开关电源模块构成其主电路。

It includes high power high voltage constant-current-charging system, capacitors bank, discharge control system, power supply of preignition for Xe-flashlamps, general control and diagnostic system. The power conditioning system drives flashlamps that pump the SSHCL. Flashlamps are driven by high voltage Silicon Controlled Rectifiers switched, resonant charged, discharge pulse forming network. The system uses microchip and digital circle which is based on CAN-bus for control and diagnostics. Energy diagnosis and thermal management are controlled by computers.

其中大功率高压恒流充电装置采用了L-C串联谐振电路，充电功率大，效率较高；储能装置采用了多节脉冲成形网络，可产生波形良好的强电流放电脉冲；放电控制装置采用高压大功率晶闸管，开关速度快，工作稳定；预燃与触发装置采用了开关电源电路，效率高、功耗小；总控与测量装置采用基于CAN总线的数字电路和单片机技术，控制冷却系统在激光器出光时对脉冲氙灯进行水冷，并对全系统进行控制和状态检测，同时具有过压、过流、过热等保护功能。

By measuring the change of primary voltage of the transformer in several periods, PI controller adjusts the width of pulse so that flux imbalance of the transformer is limited in a reasonable scope.

通过检测变压器原边电压在几个周期内的变化量，利用PI调节器得出的控制量来适时的调整触发脉冲的宽度，把变压器直流偏磁限制在较小的范围之内。

Including setting up system platform and measuring structure of the rigidity of pretension spring of the solenoid valve, designing the dynamic electric-current driver on the basis of power sink principal, variable pulse width modulation of voltage boosting and inversion technology, realizing the intelligence controlover the control parameters, satisfying the diversity requirement towards the dynamic feature experiment of the solenoid valve; furthermore, testing system software is developed, and filtering is conducted over the signals of armature displacement response and driving current educed from the experiment using wavelet analysis technology.

构建了系统台架和电磁阀预紧弹簧刚度测量机构，设计了基于功率吸收原理和可变脉宽升压逆变技术的电磁阀动态电流驱动器，实现了对驱动器参数的智能控制，满足了对电磁阀动态特性试验的多样性要求。开发了测试系统软件，提出了基于小波分析的方法，对试验所得衔铁位移响应信号和驱动电流信号进行了滤波。

The effect and principle of equilibrium reactor in rectifying circuit was analyzed. The simulation model of 12-pulse transformation rectifier with equilibrium reactor was built using PSB, which is a toolbox of MATLAB. The model was used to simulate aircraft electrical power system.

详细分析了均衡电抗器在12脉波整流电路中的作用和工作原理，利用MATLAB软件提供的工具箱PSB建立了带均衡电抗器的12脉波变压整流器的仿真模型，用该模型对飞机电源系统进行了仿真。

The study on simulation model of 12-pulse transformation rectifier with equilibrium reactor was proposed. The effect and principle of equilibrium reactor in rectifying circuit was analyzed.

引言1将计算机仿真技术应用于飞机电源系统的研究，可以降低系统的研制成本，提高系统实验、调试过程的安全性，还可以不受研究系统的规模和复杂性的限制，因此，用系统仿真的方法研究飞机电气系统，近年来受到国内外的普遍关注。

This was not understood at the time, and therefore went unaddressed, until ascension became so distorted that we chose to stop ascending and wait for a time when all records would be revealed.

这在当时没有被了解，因此进行着无改编，直到提升变得如此扭曲，我们选择去停止提升并等待所有记录能被揭示的那一天。

The attack＇s nuisance value is increased because mobile phone networks also send notifications of new voicemail by sms,so an attacked phone may stop advising of new voice messages too,it warned.

它警告：这种攻击的危害增长是因为移动电话网络也会通过短信发送新语音邮件的通知。所以受到攻击的手机可也以停止新的语音信息的提示。