In addition, the laser pulse width decreases as the gas pressure increases.
另外,激光脉冲宽度随气压的升高而减小。
In addition, the changes of the laser pulse width and pulse frequency to affect the weld width were investigated.
此外,对激光脉冲宽度及脉冲频率对焊缝宽度的影响作了深入研究。
The experimental results show that a bigger diffraction efficiency delay rate can make the establishing time of the laser pulse and the pulse width shorter, and make the peak power higher.
实验结果表明,在一定范围内增大衍射延迟速率可以缩短脉冲建立时间,缩短脉冲宽度,增加峰值功率。
Nowadays, the optical pulse used in the OTDM system is often generated by the gain-switched distributed-feedback (GS-DFB) semiconductor laser, which has a large pulse width and negative chirp.
目前常采用GS-DFB半导体激光器作为OTDM系统的光脉冲源,这种脉冲源产生的光脉冲一般较宽。
The focus is given to the influence of pumping power, cavity length, the output coupler transmission and initial transmission on the repetition rate, pulse width and output power of laser output.
着重研究了抽运功率、腔长、输出镜透过率以及初始透过率等因素对激光输出脉冲序列的重复率、脉冲宽度以及输出功率的影响。
In this paper, we got the regularity of cavity ring-down spectroscopy when the line width of laser pulse is far larger than the absorption line width of measured substance.
本文研究了当激光脉冲线宽远大于被测吸收物质的吸收线宽时,衰荡光谱满足的规律,以及在这种情况下,测量灵敏度的大小。
Adjusting the pulse width of the laser to the thermal relaxation time of the absorbing construction can avoid thermal side effects and facilitate a selective treatment of the selective cells.
把激光脉宽调整到与吸收颗粒的热弛豫时间一致可以避免热副作用,可对所选细胞产生选择性处理。
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。
In order to meet the needs of variable pulse width, frequency and power for laser fuze, a model of the LD driver circuit is built up based on its principle.
为了满足引信用脉冲式半导体激光器驱动电路的脉冲宽度可调、频率可调、功率可调的需要,根据LD驱动电路的工作原理,建立LD驱动电路的一般模型,并进行了仿真分析。
The essay expounds the operation principle of the instrument of alterable pulse width YAG Laser hair removal, the complete instrument structure and the key specification.
介绍了可调脉宽YAG激光脱毛机的工作原理,整机结构和关键技术指标。
The upper limit of the spatial resolution of the system is determined by the width of the input laser pulse.
入射激光脉冲的宽度决定了系统空间分辨率的上限。
Based on the laser oscillation requirements, this paper discusses the condition for increasing pulse-width of excimer laser. In principle, CW operation of excimer laser can be obtained.
本文根据激光振荡条件,讨论了准分子激光器增大激光脉冲宽度的条件。
The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.
激光雷达系统的作用距离由下列因素决定:脉冲能量、脉冲宽度、光束发散角、大气衰减、目标反射率和接收机灵敏度等。
An intelligent instrument used for measuring the width of ultrashort laser pulse is presented. Combining with a noricollinear SHG correlator, time resolution of 0.1 psec or better can be obtained.
将智能化激光超短脉冲宽度测量仪与非共线二次谐波相关仪相结合,可获得0.1微微秒或更优的时间分辨率。
It can be used to measure the peak power of diode laser directly. with the characters of digital display, high accuracy, large power range, wide pulse width and output port of waveform monitor.
它可直接应用于脉冲半导体激光峰值功率测试,并数字显示。具有中间环节少、测量精度高、适用功率范围大、脉宽范围宽,具有波形监测接口等特点。
The on-line detection of the laser shock processing effect is performed by detecting the amplitude and pulse width of the shock wave spreaded in the air.
本发明通过检测在空气中传播的冲击波的振幅和脉冲宽度,实现激光冲击强化效果的在线检测。
Wider pulse width, low pulse frequency and medium peak power should be used when pulse laser welds magnesium Alloy.
脉冲激光焊接镁合金时应遵循较大脉宽、低频率、中等峰值功率的原则。
The invention realizes three-band output, and the cavity structure can ensure high energy and narrow pulse width three-band laser output and also can reduce element damage.
本发明实现三波段输出,此腔型设计既能保证高能量、窄脉宽三波段激光输出,又能降低元件损伤。
The results show that the rational combination of welding parameters such as the laser power density, the welding speed, the pulse frequency and pulse width influence the quality of the weld beam.
焊接过程中合适的保护气体及其送气方式也是十分必要的。大量试验表明,激光功率密度、焊接速度、脉冲宽度和脉冲频率四个参数的合理组合是实现不锈钢薄板焊接的关键因素。
How to enhance the energy of each pulse? This is a question that the width-pulse laser renewed unceasingly and progressing unceasingly wants to reply.
如何大幅度提高每个脉冲能量?这是宽脉冲激光器不断更新、不断进步想要解决的问题。
The detailed principle of detection is presented. The relationship of range accuracy and signal-to-noise ratio with laser power, telescope diameter, and pulse width are numerically simulated.
详细讨论了这种方法的实现方案,并对方案中的激光发射功率、望远镜口径以及脉冲宽度对距离精度及信噪比的影响进行数值模拟。
A programmable pulse signal generator is used for controlling laser frequency, pulse width and power, when the laser pulse is controled by a computer, it can generate a series of laser pulses.
用可编程脉冲信号发生器控制激光脉冲的频率、脉宽和功率,使激光脉冲在微机控制下可组成各种激光脉冲序列。
Under the different laser parameters, the electron energy gain depends on the laser intensity, focal spot size and pulse width.
不同激光参鼍条件下,得到了电子的能量增益与激光强度、焦斑大小和脉冲宽度关系。
The article gives a design scheme of linear laser receiver with narrow pulse width and large dynamic range which is proved to be effective in a practical project.
提出了一套线性接收系统的设计方案,特点是动态范围大、脉冲宽度窄。依据此方案设计出来的接收机在实用中显示出了良好的性能。
The result indicates that the single pulse energy and the Angle of divergence of output laser decrease, but the pulse width of output laser increases with the increase of the OPO cavity length.
结果表明,随着OPO腔长的增加,单脉冲输出能量、光束发散角减少,而脉冲宽度增加。
It was found that the laser transfer in a long distance causes evolution of laser parameters. Laser power, laser pulse shape, pulse width and time ste...
深入研究了激光在厚介质中传输引起激光参数的变化,以及激光功率、脉冲形状、脉冲宽度、三束激光的时间不同步对电离几率的影响。
We also present the performances and indices of the devices made of these crystals. Finally, we introduce the use of LBO, BBO, KTP crystals in OPO and FS pulse-width laser measurements.
还介绍了用这些晶体制成的非线性光学器件的性能和指标,最后介绍了LBO、BBO、KTP晶体在光学参量振荡和在“飞秒’脉宽激光测量上的应用。
The Laser supply that is charged by constant electric current . has high energy and long pulse width was developed for laser welder. It has been used for several years.
为激光焊机研制的恒流充电、高能量、长脉冲输出脉冲激光电源,运转数年,表明这种电源安全、可靠、省电、故障率低。
The results show that the kerf width increases with the increase of laser power, pulse frequency, pulse width and assist gas pressure, but decreases with the increase of cutting speed.
结果表明:缝宽随输出功率、频率、脉宽及辅助氧压的增大而增加,随着切割速度的增加而减小。
The results show that the kerf width increases with the increase of laser power, pulse frequency, pulse width and assist gas pressure, but decreases with the increase of cutting speed.
结果表明:缝宽随输出功率、频率、脉宽及辅助氧压的增大而增加,随着切割速度的增加而减小。
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