A pulse ratio of the motor is calculated based on the first switching frequency.
马达的脉冲比基于第一开关频率计算。
Pulse ratio modulation, a method of recording biomedical signals with magnetic tape, is presented.
本文介绍一种磁带记录生物医学信号的方法——脉冲比例调制。
The at least one switch is operated at a second switching frequency if the calculated pulse ratio is less than a first pulse ratio value and greater than a second pulse ratio value.
如果所计算的脉冲比小于第一脉冲比值且大于第二脉冲比值，该至少一个开关以第二开关频率操作。
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。
According as compare of voltage deviation and its variable ratio, optimal control of voltage and current is realized with querying fuzzy control sheet and adjusting adverse variable pulse width.
比较电压偏差及其变化率，查询模糊控制表，调节逆变脉宽，可实现电压及电流的理想控制。
The results show that the deposit rate, composition and properties of coating change with the variation of duty ratio and pulse frequency.
结果表明，镀层的沉积速率、镀层成分及镀层的性能都随脉冲频率和占空比的变化而变化；
Pulse shaping is the important methods to get high compression ratio.
辐射驱动温度源脉冲整形是获得高压缩比的重要途径。
By synthesizing twice MTD results, actual velocity of the target is gained. Relation between pulse duty ratio and velocity measurement error is deduced.
综合两次MTD结果得到了目标的实际速度，并推导出了脉冲占空比和速度测量误差的关系式。
The selection of the initial shift register of M-sequence is a key technique in pulse compression waveform design whose pulse compression waveform must have low peak power and large compression ratio.
二相编码波形设计中初始移位寄存器的选择是个关键技术，它直接决定了信号波形在满足最小峰值功率下能否具有最大脉压比。
To solve the problem of exaggerated angle pulse in the ratio driving and tracing measuring technique in testing in situ for large gears, the programmable dynamic frequency doubler has been developed.
为解决大齿轮在机测量过程中采用比例驱动跟踪测量技术时转角脉冲当量过大的问题，研究开发了可编程动态倍频器。
The higher the initial relative peak power is, the higher the compression ratio and compressed peak power of the bright pulse are.
初始相对峰值功率愈高，亮脉冲的压缩比和压缩后的峰值功率愈高，同时所需的光纤长度愈短。
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。
The compression ratio of output pulse decreases when considering the influence of higher-order effects.
当考虑高阶效应的影响时，输出脉冲的压缩比减小。
C variable amplitude pulse charging mode was proposed to reduce capacity ratio of charge-discharge and water-loss rate, so the batteries in series were in conformity, thus to extend the cycle life.
变幅脉冲充电模式，减少充放电容量比率和失水量，促使串联中各电池性能的一致，达到延长深循环寿命的目的。
The major technologies used include increasing compression ratio, changing spark advance Angle and using intake pulse turbo-charging.
主要采取了提高压缩比、改变点火提前角及采用进气脉冲增压技术。
Panel circuit can set parameters such as pulse width, work ratio.
面板电路可设置脉宽、工作比等参数。
The welding current, arc voltage, preset current, the period and ratio of pulse, base current, down slope time, gas pre and post flow time are sampled, calculated and controlled by microprocessor.
单片机对焊接电流、电弧电压、电流给定、脉冲周期、占空比、基值电流、收弧电流衰减时间、前气和后气时间等焊接参数进行采样、计算和控制。
The laser output energy, dynamic to static ratio, pulse bandwidth ana spectral line width etc. by Q-switching ware measured and analysed theoretically.
测量了调q后激光输出的能量、动静比、脉宽、谱宽等，并从理论上进行了一些分析。
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 improvement of slab equiaxed crystal ratio by electric pulse on liquid steel in continuous casting mould at Pan steel slab castor No.
从结晶器施加电脉冲输入能量、钢液过热度、电极间距三方面，探讨电脉冲处理提高铸坯等轴晶率的效果。
The GMI ratio of about 114 % is obtained in near zero-magnetostrictive Co-based amorphous alloy ribbon annealed by short time rectangular pulse current.
利用短时矩形脉冲电流对近零磁致伸缩系数钴基非晶态合金带进行退火处理，得到约114%的巨磁阻抗变化率。
The improvement of slab equiaxed crystal ratio by electric pulse on liquid steel in continuous casting mould of Panzhihua steel No.
从结晶器施加电脉冲的输入能量、电脉冲频率、钢液过热度角度，探讨电脉冲技术提高铸坯等轴晶率的效果。
UST real time signal process system is called signal extraction system. It can increase signal noise ratio through synchronization and average and limited pulse response filtering.
称为信号析取系统的超声波检验实时信号处理系统，它通过同步平均和有限脉冲响应滤波能够提高信噪比。
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。
Preamplifier is one of the key factors which affect APD detection system of laser pulse. The signal-to-noise ratio(SNR) of preamplifier determines the SNR of whole detection system.
前置放大器是影响APD激光脉冲探测系统好坏的关键因素，前置放大器的信噪比决定了整个探测系统的信噪比优劣。
The effects of pulse current, frequency, duty ratio and inverse current in zincate system on the appearance and corrosion resistance of zinc coating are investigated.
研究了在锌酸盐镀锌体系中采用脉冲电流时，脉冲频率、脉冲的占空比、反向电流对镀层外观、耐蚀性的影响。
To overcome pulse noise influence to image quality, discrete dyadic wavelet transform (DDWT) is used to reduce the noise influence and improve signal to noise ratio (SNR).
为了克服噪声对超声检测成像质量的影响，利用离散二进制小波变换的分解重构算法来降低脉冲噪声的干扰，提高超声图像的信噪比。
The influence factors such as the dimension of exciting coil, the frequency, the duty ratio and the voltage of exciting pulse were analysed, the principle of choosing testing parameters was proposed.
分析了激励线圈的尺寸、激励脉冲的频率、占空比和电压等因素对脉冲涡流检测系统的影响，给出了实际检测过程中选择参数的原则。
But to the CW pulse signal with changing carrier wave frequency, common filter cannot achieve narrowband filter, whereas broadband filter cannot reach the request of the signal-noise ratio.
可是，对于载波频率不断变化的CW脉冲信号，普通的滤波器难以实现窄带跟踪滤波，而宽带滤波又不能达到提高信噪比的要求。
The results show that the compression ratio and compressed peak power of the bright pulse depend upon the initial relative peak power of the dark pulse to the bright pulse.
结果表明，亮脉冲的压缩程度与暗孤子相对于亮脉冲的初始峰值功率有关。
应用推荐