脉冲周期

基于PLD的参差脉冲周期电路的竞争冒险

Competitive Risk of the Stagger Impulse Period Circuit Based on PLD

VelaX-1在X射线脉冲周期突变期内的光电和光谱观测

The Photoelectric and Spectral Observations of Vela X-1 During the Period of Sudden Change of Its X-ray Pulse Period

被动调Q激光脉冲周期的研究

Study on periodicity of giant pulses with passive Q switched laser

脉冲周期Logistic单种群模型的稳定性及周期解的存在性

Stability of A Class of Periodic Impulsive Logistic Single-Species Model and the Existence of Its Periodic solution

用单片机实现水声遥控指令的脉冲周期编码（PTC）信号

Make Pulse Time Code Signal of Underwater Acoustic Remote-Controlled Command by Using Single Board Computer

这相当于将脉冲周期T细分为N等份，每份相当于1个脉冲，其周期为T/N。

It is just like that a cycle T is divided into N parts , and each one works as a pulse , whose cycle is T / N.

本文阐述遥控水下系统非同步动作的声脉冲周期编码（PTC）。

The paper describes a Pulse - Time Code ( PTC ) method specially designed for a remote controlled , asynchronous underwater system , such as an under water acoustic release array .

第二节研究了害虫（食饵）具有阶段结构及成熟期时滞，脉冲周期地投放天敌，S型Holling功能反应的捕食模型。

In Section 3.2 , an S type Holling functional response predator-prey model is investigated , in which natural enemy is released impulsively and pest has stage structure and maturation delay .

本文设计了PPM-PTC（脉位调制-脉冲周期编码）信息水声编码方式并将其运用于海底管线保护电位水声遥测系统中；

In this paper , the PPM-PTC ( Pulse Potential Modulation-Pulse Time Code ) are designed to transmit the acoustic information of the cathodic protection potential of the subsea pipeline .

光源采用TSL－210型可调谐主动销模激光器，脉冲周期为400ps（2.5Gbit／s），脉冲半宽为32ps。

Optical pulse source is TSL-210 active mode-locked laser with tunable wavelength , pulse period is 400 ps ( 2 . 5 Gbit / s ) and pulse half-width is 32 ps.

用单片机测量脉冲周期和频率的方法

Methods of Measuring Period and Frequency of Pulse Using Single-Chip Processor

当脉冲周期长于特定时间范围时触发。

Greater than triggers on pulses wider than the specified time .

天体脉冲周期计算中的相对论多普勒效应

Relativistic Doppler Effect in the Calculate of the Pulse-period of Celestial Bodies

N维脉冲周期种群动力系统的正周期解

The Positive Periodic Solutions of N-dimensional Periodic Population Dynamical Systems with Impulse

快堆核测系统数字化脉冲周期仪

The digital pulse period instrument of the fast neutron reactor nuclear instrument system

两个脉冲周期之间的停顿时间，称为循环间隔。

Pause time between the two pulse cycles is call as cycle interval .

经程序运算得到每脉冲周期内的采样点数，瞬时脉冲频率和周期。

Finally , the frequency and cycle of the impulse can be calculated by programming .

并认为速度脉冲周期不宜作为考虑近场地震输入时选波的指标。

And the velocity pulse period is not an appropriate parameter for selecting near-fault earthquake waves .

探讨了氧化温度、电流密度、脉冲周期与氧化电压、膜厚、膜层质量、成膜速率之间的关系，由此获得了汽车空调涡旋动盘脉冲阳极氧化最佳工艺方案。

Discuss the relation between oxidation temperature ? current density ? pulse period and oxidation voltage ?

同时，对常规M/T速度检测方法进行改进，以消除非完整编码器脉冲周期造成的测速误差。

Meanwhile , the conventional M / T speed detection method was improved so as to eliminate the error from non-complete pulse period .

运用了脉冲周期测量法，使采样测量周期缩短，灵敏度提高，测量数据精确，读数稳定。

The design used pulse cycle measurement to shorten sampling time , advance the delicacy , and make the metrical result precise and stable .

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。

It introduces a digital cymometer which has the functions of frequency measuring , pulse cycle measuring , pulse width measuring and pulse signal ratio measuring .

考虑到一个脉冲周期内熔池未熔透-全熔透的周期性变化特点，在小孔的求解过程中分两种情况分别进行处理和模拟。

According to the periodic variation of weld pool in a pulse cycle , the keyhole is numerically simulated for two cases ( partial or full penetration ) .

但是由于计数方法本身的误差，在测量精度要求比较高或是在鉴相脉宽小于用于计数的时钟脉冲周期时，原来的测量方法就无法满足实际的测量要求。

But errors lies in the way of counter lead the bad measurement , especially when it needs high precision or the clock pulse is wider than the difference .

详细分析了已有脉冲周期和脉冲速度峰值的识别方法，分析结果表明这些方法均具有局限性，尤其是对于不规则地震动。

And a new method is proposed to identify the pulse period and the peak pulse velocity from the smoothed seismic records , and its validity is also verified .

在该模型中，包含描述速度脉冲周期、峰值和形状的5个待定参数，方便了实际脉冲型地震记录的拟合及模拟。

The equivalent pulse model , in which the pulse period , peak velocity and pulse shape are described by five parameters , is highly advantageous to fit and simulate the pulse-type velocity time history .

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 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 .

确定了计算所用到的湍流模型之后进行了涡轮非稳态特性计算得到了在一个脉冲周期内涡轮的流量、等熵效率相对于膨胀比的变化都成圈状的典型的涡轮的非稳态特性。

And the turbulence model is determined then the non-steady characteristics of turbine are calculated . The results show that in a pulsed cycle turbine flow mass and isentropic efficiency relative to the expansion ratio change into " ring-like " which is typical .

在分析了用计数法测量转速误差基础上，探讨了通过测量光栅脉冲周期来测量瞬时转速的方法。该方法在主轴高、低速情况都能保证准确测量瞬时转速。

On the analysis of rotating velocity measuring error with counting , a method of measuring instantaneous speed through measuring the period of grating pulses is discussed , this method can precisely measure instantaneous velocity when main spindle rotating at both high speed and low speed .

罗兰-C脉冲信号周期的数字识别及SOPC实现

Digital algorithm realized with SOPC for cycle identification of LORAN-C