数字显示表明了激光的脉冲周期和信号强度。
A numeric display indicates the laser's pulse period and signal strength.
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.
除了可以测脉冲频率外，还有专门测脉冲周期的电路。
It could be used to detect pulse frequency and provided with circuit for pulse cycle detection.
经程序运算得到每个脉冲周期的采样点数，瞬时脉冲频率和周期。
Sampling point number of every pulse cycle, instantaneous pulse frequency and period was gained with program operation.
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.
在超声波脉冲脉冲周期取决于传输脉冲周期和时间的传感器铃声。
The pulse period of the ultrasonic pulse depends on the period of the transmission pulse and on the ringing time of the transducer.
本设备采用电子控制喷吹系统，任意调节脉冲周期和宽度，操作灵活方便。
The equipment adopts electronic control spraying and blowing system and can adjust pulse cycle and width freely. Its operation is flexible and convenient.
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.
调节器由齿轮和蜗轮蜗杆减速器组成；自动控制电路由脉冲周期鉴别、正向开关、反向开关及保护电路组成。
The adjustor consists of gears and worm-gear reducer, and the automatic controller circuit consists of pulse period discriminator, forward switch, backward switch and protector circuit.
针对利用可编程器件设计的参差脉冲周期电路，分析其竞争冒险产生的原因，提出了修改电路结构解决竞争冒险的办法。
This article reviews a stagger impulse period circuit designed by PLD. By analyzing the reason of competitive risk, the author brings forward a solution of revising the circuit structure.
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.
涡流增压器采用了一个快速响应喷头来跟踪尾气脉冲，减少内燃机的进气周期，从而增加尾气排放压力。
It USES a fast actuated nozzle to follow the exhaust pulse, reducing the turbine inlet area periodically to increase exhaust-gas pressure.
其之所以重要是因为它们发出有规律的光脉冲，而且这些脉冲的周期与该星的亮度精确对应。
These are important because they produce regular pulses of light and the period of those pulses is precisely related to the luminosity of the star.
桑基解释：“办法就是在四分之一的震动周期中施加脉冲，就像推小孩儿荡秋千一样，一个脉冲推动一次”。
"The idea is that the time that the pulse is on is about a quarter of a period of a vibration, " Sankey said.
有所不同的是，这种激光器与其它脉冲激光器完全相反：在大多数的时间里它是打开着的，但它会周期性的短暂自动关闭。
What is unusual is that this laser is the exact inverse of most pulsed lasers: it's on most of the time, but periodically turns itself off for a short time.
我们知道脉冲星周期，的精确度很高。
We know the period of the pulsar to a very high degree of accuracy.
目前除采用一般的直流电外，根据实际的需要还可采用周期换向电流及脉冲电流。
At present in the general of dc outside, according to the actual need to still can use cycle reversing current and pulse current.
参数测量主要指对波形特性，如上升时间、下降时间、过冲、周期、脉冲波形或眼图的幅度等。
Parametric measurements measure waveform properties such as rise time, fall time, overshoot, period, and amplitude on either a pulse waveform or an eye diagram.
摘要本文通过生物控制和化学控制提出了具有周期脉冲效应与害虫控制的捕食系统。
In this paper predator-prey systems with periodic impulsive effect concerning pest control are proposed through biological control and chemical control.
其插补精度与最大进给速度、机床系统的脉冲当量、插补周期，以及脉冲发生器的输出脉冲频率有关。
The interpolation precision is correlated with Max feed rate pulse equivalent of CNC cyc of interpolation and output impulse frequency of pulse generator.
利用正比于系统变量的周期脉冲扰动法对其混沌进行控制，得到较好的控制结果。
Good controlling results are gotten by using periodic pulses disturbance method proportioned with system variable to control the chaos.
基于时延测量的水声跟踪定位系统，当信号传播时延大于脉冲重复周期时，就会出现距离模糊。
For underwater acoustic positioning system based on measurement of time_delay, range ambiguity appears when pulse's propagating time is longer than its repetition period.
爆炸震源的地震纵波是脉冲性质的。周期振动是地震脉冲引起的次生振动。
A primary seismic wave from an explosive source is a pulse response, and its periodic vibration originates from seismic pulses.
调节超声波，可改变光脉冲的强度和周期。
Modulating the ultrasonic wave, intensity and period of the light pulse will change.
研究含有高斯白噪声的周期脉冲信号，通过阈值系统后的随机共振特性。
It is investigated that the characteristics of stochastic resonance of the periodic pulse signal added Gaussian white noise through a threshold system.
研究了高频CO2激光脉冲写入的长周期光纤光栅在扭曲状态下的横向负载特性。
The transverse load characteristics of twisted long-period fiber grating (LPFG) written by high-frequency CO2 laser pulses was demonstrated.
本文讨论了一类脉冲神经网络的周期解的指数稳定性。
This paper discusses the exponential stability of periodic solution for impulsive neural networks.
最后，通过数值模拟阐明系统在周期脉冲扰动下的复杂性。
Lastly, use the numerical simulation to illustrate the complexity of the system resulted from the periodic impulsive perturbation.
该系统以弧长作为操作量，改变每个周期的脉冲峰值电流的宽度，以达到对焊接弧长控制的目的。
The arc length was taken as the manipulated quantity in the system and the peak current width of welding pulse was varied.
它不仅可以测量正弦波、方波、三角波、尖脉冲信号和其他具有周期特性的信号的频率，而且还可以测量它们的周期。
It can measure not only the sine wave, square wave, triangle wave, a sharp pulse but also can measure other characteristics of the signal wave.
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