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laser bean
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  激光束
     Studying on spacing scattering phenomena in pulse laser machining is an important method to analyze quality of laser bean absorbed by material and improve machining precision.
     对脉冲激光加工中空间散射现象的研究是分析材料吸收激光束质量,提高加工精度的重要方法。
短句来源
     To ensure the laser bean focus on the information channels precisely, the higher requirement on servo system is desirable.
     要保证激光头输出的激光束能准确地沿着光盘上极其微小的各信息轨迹读取信息,就对伺服系统提出了更高的要求。
短句来源
     Laser marking is a kind of technique of marking permanent sign on the object's surface by using laser bean with high energy density.
     激光打标是利用高能量密度的激光束在物件表面制作永久性标记。
短句来源
     In this paper, the soundex using laser bean modulated in intensity is advanced to suppress the atmospheric noise.
     本文提出了抑制大气噪声的强度调制激光束探测法。
短句来源
     The intensity of laser bean,environmental temperature,the kind and the velocity of flow of catalyst and the frequency and interval of impulse act important parts in SWCNTS produced by laser evaporation.
     激光束的强度、环境温度、惰性气体的种类及流速、脉冲的频率及间隔时间等工艺参数决定激光蒸发法制备SWCNTS的产物。
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  “laser bean”译为未确定词的双语例句
     The Technology of CO_2 Laser Bean with Middel/low power Cutting Thick Plates
     中小功率CO_2激光的厚板切割技术
短句来源
     With the appearance of high power laser bean, power density of it is improved expressly;
     随着大功率激光器的出现,尤其是激光光束的功率密度的提高,激光深熔焊接技术在工业生产中的应用日益广泛。
短句来源
     Laser bean drift is a major factor that affects the accuracy of straightness measurements in the laser collimation.
     在激光准直高精度直线度测量中,激光漂移是影响其测量精度的主要因素。
短句来源
     This measuring system applies linear laser. The laser bean is projected onto the surface of the wheel profile.
     本课题研制的测量系统采用线激光投射到车轮踏面轮廓上,通过左、右CCD摄像机系统的拍摄和图象采集得到车轮轮廓的激光曲线图。
短句来源
     In generic instance, the method can avoid the atmospheric noise, even the atmosphere noise is very large (modulate index to laser bean reaching 1), it is anticipated that the signal's SNR can be kept OdB upwards.
     在忽略大气干扰引起的光束漂移影响和相位起伏噪声的前提下,上述方法在一般情况可以有效抑制大气干扰,即使在大气噪声对光束的强度调制指数接近1时,仍可以使侦听信号信噪比保持在0dB以上。
短句来源
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  相似匹配句对
     Laser and It's Application
     激光(laser)及其应用
短句来源
     Laser Score
     激光划线
短句来源
     The Bean Eaters
     吃豆人
短句来源
     Error Analysis of Laser Bean Pointing in Free Space Optical Communication
     光通信中光束瞄准的误差分析
短句来源
     With the appearance of high power laser bean, power density of it is improved expressly;
     随着大功率激光器的出现,尤其是激光光束的功率密度的提高,激光深熔焊接技术在工业生产中的应用日益广泛。
短句来源
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  laser bean
A laser bean from an argon laser source, set to emit light with a wavelength of 488 nm, is focused on the illumination field diaphragm and creates a spot in the object plane of the microscope.
      
The time between the trans-mission and the reception of the laser bean is used to measure the distance between the scanner and the object.
      
A laser bean extends from the user's hand to infinity.
      


In dual-mode interieromatre optreof the ber sensors ,base-modes need to be taunched setectiv in order to semeflate the senstivity ofteading fiber.This paper anayzes ling between laser diode(LD) and base-rnode in opticai fiber. On the asumpton of Gausatian node sharps for the LD andfiber base-mode metds, formu as for determining the laser bean waist radius and the fiber basp-node radiu are given,and formulas forcalculat ing imaere reation of a coupting thick.en are given. A28% coupling efficiency of polarimalie...

In dual-mode interieromatre optreof the ber sensors ,base-modes need to be taunched setectiv in order to semeflate the senstivity ofteading fiber.This paper anayzes ling between laser diode(LD) and base-rnode in opticai fiber. On the asumpton of Gausatian node sharps for the LD andfiber base-mode metds, formu as for determining the laser bean waist radius and the fiber basp-node radiu are given,and formulas forcalculat ing imaere reation of a coupting thick.en are given. A28% coupling efficiency of polarimalie mode in highly brefringentoptica fiber obtal experimentaly Last a discussion is given about LD astigmatism and feedback eifesis.

在双模干涉型光纤传感器中,为了消涂光纤引导段的敏感效应,需要选择性地激发光纤的基模,本文对半导体激光器(简称LD)与光纤基模的耦合进行了理论上的分析。在高斯分布漠场假设的基础上,给出了激光束腰半径和光纤基模模场半径的表达式,以及利用透镜进行两模式匹配的具体光学计算公式。据此进行的LD与高双折射光纤偏振模(基模的一个偏振分量)的耦合实验得到了28% 耦合效率。文章最后讨论了半导体激光器的椭圆性和固有象散以及光反射对耦合造成的影响。

Studying on spacing scattering phenomena in pulse laser machining is an important method to analyze quality of laser bean absorbed by material and improve machining precision.According to the theory of equation:absorption rate+scatter rate=1,this paper has analyzed the scattering phenomena by experiments,determined ways and collection devices to research it.At the same time,the mathematical models of scattering-energy have been presented and its graphics have been drawn under AUTOCAD by collection system...

Studying on spacing scattering phenomena in pulse laser machining is an important method to analyze quality of laser bean absorbed by material and improve machining precision.According to the theory of equation:absorption rate+scatter rate=1,this paper has analyzed the scattering phenomena by experiments,determined ways and collection devices to research it.At the same time,the mathematical models of scattering-energy have been presented and its graphics have been drawn under AUTOCAD by collection system and its soft program.Experimental result shows that the spacing distribution of the scattering-energy is like as segment.

对脉冲激光加工中空间散射现象的研究是分析材料吸收激光束质量,提高加工精度的重要方法。本文根据散射率+吸收率=1的原理,实验分析空间散射现象,确定散射现象的研究方法和实验采集装置,建立空间散射能量的数学模型,通过采集系统和相应的软件编程,绘制散射能量分布图。实验结果表明:散射能量的空间分布近似为一球缺。

Phase-approaching of projected grating is used in the measurement of three-dimensional surface usually.This paper describes the measurement techniques of transparence surface microtopography based on this method,so the field of this method is developed.The surface microtopography of PMMA disk processed by laser medical treatment machine for myopia is measured,the horizontal resolution is less than 1 μm and the veritcal resolution is less than 0.1 um.The maximum peak to valley surface finish is calculated,this...

Phase-approaching of projected grating is used in the measurement of three-dimensional surface usually.This paper describes the measurement techniques of transparence surface microtopography based on this method,so the field of this method is developed.The surface microtopography of PMMA disk processed by laser medical treatment machine for myopia is measured,the horizontal resolution is less than 1 μm and the veritcal resolution is less than 0.1 um.The maximum peak to valley surface finish is calculated,this can help to calculate the laser bean energy field and adjust the medical treatment machine.

投影栅线相位法通常用于宏观三维形貌的测量 ,本文提出将其应用于透明体微观形貌领域的测量 ,从而拓展了测量方法的测量领域。实际测量了准分子激光近视治疗仪加工的有机玻璃试样 ,给出了表面的微观形貌。系统的横向分辨率小于 1μm,纵向分辨率小于 0 .1μm。根据微观形貌计算了描述表面光洁度的参数 ,为计算激光束能量分布及治疗仪的校准提供了依据。

 
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