查询词典 laser

With a CCD camera and a frame grabber to capture the laser spot, the digital image is transferred to special software for further processing, the amount of the laser spot drift can be achieved. The amount of the drift in X direction, Y direction and in spatial angle can be obtained through geometrical optics.

它采用CCD摄像头和图像采集卡采集激光器输出光斑，通过专门软件对数字图像进行处理，得出光斑漂移的大小；另外，利用几何光学方法得到了激光光束在X方向、Y方向以及空间立体角上的漂移大小。

The free electron laser is a new field in electron laser technology.

自由电子激光是激光技术的新领域，它具有气、液、固各种物态激光所没有的优越性。

The frequency fluctuation of the stabilized laser is held within 5.6 MHz and better than 160 MHz of the free-running laser. The root of Allan variance of error signals reaches a minimum of 1.66×10 -11 when averaging time is 64 s, well within the precision needed for application.

稳定后的激光频率波动小于5.6MHz，相对于自由运转时的160MHz有了很大提高，而误差信号的Allan方差均方根在平均积分时间为64s时达到最小值1.66×10-11。

When the LD incident power was 2.68 W, 2.7 mW and 24 mW free-running laser outputs at 731 nm have been obtained in the same plano-concave cavity, respectively. By using of 3.4 mm length laser rod, the overall efficiency of 1.4% and slope efficiency of 11.9% were gotten.

当激光二极管输入功率为2.68 W时，在平凹腔中祖母绿晶体分别实现了2.7 mW和24 mW的731 nm红外激光的自由输出，其中长度3.4 mm激光晶体的光-光转换效率为1.4%，斜率效率为11.9%，激光阈值在0.7 W附近，并分析讨论了效率低的原因。

In order to improve scan precision of the laser galvanometer scan system, especially when scan area is large, the reasons of graphic distortion are analyzed in this paper when the laser galvanometer scan system is running, and the whole bag of compensating tricks are put forward for every reason of corresponding graphic distortion.

针对如何提高振镜式激光扫描的扫描精度，特别是当扫描区域较大时的精度问题，文中展开了对振镜式激光扫描时图形畸变原因的分析，并对每一种误差产生的原因提出了校正补偿的办法。

His system, known grandiosely as a 'large aperture scintillometer', consists of a laser on one side of a field, a telescope on the other, and a lot of clever computing to interpret what the telescope sees. What that computing is trying to measure is how much the laser beam twinkles as it passes across the field.

Kleissl的系统有一个响亮的名字："大眼睛闪烁仪"，它由以下几部分构成：农田某一边放置一个激光器，另一边有一个望远镜，然后通过大量电脑智能分析，以解析望远镜收集得来的数据：激光器发出的激光在穿过农田，到达望远镜之前闪烁的次数。

After years of practice and exploration, the company made great contributions to helicopter operations on patrol inspection of 500kv EHV electric power transmission line, live EHV transmission line insulator flush, hotline maintenance, wire setting-out, laser scanning and patrol inspection of UHV transmission line, filling in the gaps in the country and ensuring the safe stable operation of power network. The company has operations in the 500KV EHV Air Patrol, live maintenance, exhibition guide rope release, laser scanning and 1000KV Air Patrol operations and other special high-voltage electrical work on the helicopter filled a number of technical blank, to further ensure the security and stability of power grid to make an important contribution.

在多年的实践探索中，公司先后在500千伏超高压航巡作业、带电水冲洗绝缘子、带电检修、展放导引绳、激光扫描和1000千伏超高压航巡作业等直升机电力作业上填补了国内多项技术空白，为进一步确保电网的安全稳定运行做出了重要贡献。

The fast Hankel transformation algorithm is used to study the diffractive modulation property of laser beam propagation in high power laser facility.

文摘：利用快速汉克尔变换算法研究了高功率激光在自由空间传输过程中形成低频调制的规律，给出了衍射调制深度与光束宽度及传输距离等参数之间的变化关系。

In order to measure jitter of gain-switched laser precisely, we analyze theoretically the math model and measurement principle of harmonic spectrum analysis used to measure laser pulse jitter.

为了能够精确测量增益开关激光脉冲的抖动，应用傅里叶变换和自相关函数，理论分析了谐波频谱分析法测量激光脉冲抖动的数学模型、测量原理，修正了David A。

The dependence of the harmonic generation on the parameters of laser and plasma are systematically analyzed. Some discussion on the pathway to improve the ratio of the harmonic power to the pump laser is given.

首次研究了超强激光在电子-正电子等离子体中激发的相对论相干谐波辐射，发现其特性强烈依赖于准静态的外加磁场或自生磁场。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。