1、

Measurement of relaxation time comparable with pulse width in Kerr liquid

用克尔快门测量与脉冲宽度相比拟的克尔液体的弛豫时间

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2、

It is found that bandwidth of pulse has effects on time delay and pulse width.

计算结果表明脉冲光束的带宽对脉冲贝塞尔光束传输中的脉冲时间延迟和脉冲宽度产生影响。

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3、
4、

The method which to obtain fast rising time for narrow pulse width is got;

得到了如何在窄脉宽情况下获得快速上升沿的方法;

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5、

The theoretical research shows that the SBS induced damage mostly happens at the entrance surface of pump laser and the threshold intensity is inversely proportional to laser pulse width and the interaction length.

研究发现,SBS作为一种破坏机制,表现为前表面破坏,且破坏阈值与激光脉宽以及作用区长度均成反比。

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6、

The target voltage outputs were lower than 1.0 V.The target pulse width outputs ranged from 0.33 ms to 0.45 ms during different follow-up periods.

目标电压输出值在术后不同的随访时期均低于10V。目标脉宽输出在术后1周到6个月在033~045ms之间。

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7、

When we test splice loss and loss by Optical Tine Domain Reflector, we may find that the selection of pulse width influences the precision of test, the linearity approximative method also influences the test result.

在利用OTDR测试接续损耗和损耗时,脉宽的选择影响测试的准确性,线性近似法的选择对测试结果也有明显影响。

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8、

Rise and fall time, pulse width, and AC/ DC voltage can be measured at the push of a button or with a single HP-IB command.

上升和下降时间,脉冲宽度,和AC/直流电压可以衡量在推动一个按钮,或与一个单一的惠普-IB接口命令。

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9、

Based on average linear dynamic model of a thermoelectric cooler, a temperature control system was designed for the cold end temperature of the thermoelectric cooler by using fuzzy-PID algorithm and Pulse Width Modulator.

基于平均意义上的动态模型,采用模糊自适应PID控制算法和脉宽调制技术设计了半导体致冷器冷端的温度控制系统。

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10、

The characters of the burst mode optical signal ask the transmitter for some special function such as automatic power control, delay compensation, raise/ drop time control and pulse width control.

由于突发光信号的特殊性质,要求突发式光发射模块具有自动功率控制、延时补偿、上升/下降时间控制、光脉宽控制等特殊功能。

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11、

The pulse width circuit, which is consisted of the linear heat sensitive resistance, are selected with the pulse width as the time controlling the counting number.

选择线性热敏电阻组成的脉宽电路,将脉宽作为控制计数的时间,由晶振产生某一标准频率的脉冲信号,通过分频以及计算译码驱动送显示。

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12、

In high frequency range, the specular reflection echo have the same wave form as the incident wave, but in low frequency range or resonance scattering range, there is a time expansion of the pulse width after main reflecting echo from smooth curvature surface.

在低频或谐振散射区域,光滑曲率表面的脉冲镜反射回波特征是在主回波后有时间扩展,它是由曲率反射面产生的,称为回波的曲率效应;

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13、

The rate equation was solved to analyze the influence of upconversion effect to the output power, slope efficiency and threshold power in CW operation and the pulse energy, pulse width and peak power in Q-switched operation.

通过速率方程的求解模拟分析了上转换效应对连续运转Ho激光器输出功率、斜率效率和阈值功率的影响以及对调Q运转Ho激光器单脉冲能量、脉冲宽度和峰值功率的影响。

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14、

Study and test of sine pulse width modulation transistor inverter

正弦波脉宽调制型晶体管逆变器的研究与试验

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15、

The configuration and principle of the system to measure the pulse width and the power time history of a multiplex beam laser are introduced, and the mathematic analyses of the probable nonlinear effect and pulse broadening are also given.

介绍了一种多路激光束的脉宽和功率变化测量系统的构成和工作原理,并给出了系统可能出现的非线性效应和脉冲展宽的数值分析。

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16、

Measurement results of the dependence of the pulse width of the mode-locked pulses, the stability range of laser for stationary single-pulse operation and the threshold pumping power on the concentration of the absorber dye are given.

提供锁模脉冲宽度、激光器以稳定单脉冲工作的稳定性范围和阈值泵浦功率等,对吸收体染料浓度依赖关系的测试结果。

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17、

Semiconductor laser outputs laser beams of pulse width from 1 μ s to continuous frequency of 1 kHz through control circuit.

半导体激光器,通过控制电路输出脉宽从0.5μs到连续、频率1kHz的激光束。

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18、

On the basis of a lot of experimental data based on the orthogonal test of pulse peak electric current, pulse width and pulse intermission, experimental mathematical models of electric spark forming of several sorts of materials are built up with multiple linear regression analysis.

用正交试验法对电火花加工中的峰值电流、脉冲宽度、脉冲间隔进行设计,在大量实验数据的基础上,采用最小二乘法建立实用的多种材料的电火花加工实验数学模型。

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19、

The main error sources of pulse width measurement, including counter's repeatability, trigger level timing error, time base error, the amplifier hysteresis error, LSD displayed error, etc. are analyzed.

分析了脉冲信号源脉宽测量时的主要误差来源,包括计数器测量重复性、触发定时误差、时基误差、放大器滞后误差、分辨力误差等;

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20、

In the design of the main oscillating circuit, the programmable timing counter IC of 8254 is controlled by the single chip computer to adjust the pulse width and interval, which provides the precise adjustment on the pulse width and interval in a wide range.

在主振脉冲发生电路的设计上,通过单片机控制可编程定时计数器芯片8254来控制脉冲宽度和脉冲间隔,使脉冲宽度和脉冲间隔在很宽的范围内可以精确调节。

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