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laser
相关语句
  激光
    Study of Displacement Sensor Automatic Calibration System Based on Double-frequency Laser Interferometer with Two Longitudinal Modes
    基于双纵模双频激光干涉测量的位移传感器自动检定系统的研究
短句来源
    Study of Laser Interference Surface Texture Measuring System and 3D-MOTIF Evaluatin Method
    激光干涉表面形貌测量系统及3D-MOTIF评定研究
短句来源
    Study on the Use of Ultra-Short Pulse Laser Modulation in the High Time-Resolved Spectrometer
    超短脉冲激光调制在时间高分辨光谱仪中应用的研究
短句来源
    In-plane Motion Measurements of MEMS Resonators by Using Laser Doppler Method
    微机电系统谐振器面内运动检测的激光多普勒方法
短句来源
    Automatic Step and Repeat Camera with Precision Positioning by Laser Interferometer
    激光干涉定位自动分部重复相机
短句来源
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  激光器
    Iodine Saturated Absorption Stabilized He-Ne Laser
    碘饱和吸收稳定的氦氖激光器
短句来源
    Methane Saturated Absorption Stabilized He—Ne Laser
    甲烷饱和吸收稳定的氦氖激光器
短句来源
    Repetition Rate Nd : YAG Laser
    重复频率Nd:YAG激光器的研究
短句来源
    A Simple Scheme of Output-line Selection of CO_2 Laser
    选择CO_2激光器输出谱线的一个简单方案
短句来源
    Study of Adjusting Method on Double 45°LiNbO_3 Q Switch Laser
    双45°LN调Q激光器调试方法探讨
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  “laser”译为未确定词的双语例句
    The Application of Pulse He-Ne Laser for High Speed Interference Photography
    He-Ne脉冲光源在高速干涉摄影技术中的应用
短句来源
    Effect of Diffraction Halo on the Accuracy of Measurement of the Amplitude of Vibration by Laser Speckle
    衍射晕对散斑测振精度的影响
短句来源
    An Experimental System for Laser Holographic Information Storage
    全息信息存贮实验系统的研制
短句来源
    Sensitive Large Measurement Range Laser Pulse Energy Measuring and Error Analysis
    高灵敏宽量程光脉冲能量绝对测量和误差分析
短句来源
    Weak Signal Detection in Infrared Laser Optoacoustic Spectroscopy
    红外激光光声光谱中的弱信号检测
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  laser
Two compounds were designed, synthesized, and characterized by 1H-nuclear magnetic resonance (1H-NMR), ultraviolet (UV)-visible, and matrix-assisted laser desorption/ionization (MALDI) mass spectra.
      
Restriction Enzyme Pattern Analysis of Mycobacteria DNA by Capillary Electrophoresis with Laser-Induced Fluorescence Detection
      
A new method for rapidly detecting restriction enzyme patterns of Mycobacterium DNA using capillary electrophoresis with laser-induced fluorescence detection (CE-LIFD) was developed.
      
The polymers were characterized by IR spectra, thermal-weight analysis, scanning electron microscope and laser particle size analysis.
      
Photoinduced intramolecular electron transfer process from C60 moiety to carbazole moiety has been studied by nanosecond laser flash photolysis.
      
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This paper describes an automatic step and repeat reduction camera with precision positioning by applying the theory of light interference, using a He-Ne gas laser for light source. The camera consists of a laser interferometer system, a set of precision mechanism, a numerical control device and a laser frequency stabilizer. The displacement of the working table is measured and located by the laser interferomenter system, so the accuracy of the camera in repeat positioning is better...

This paper describes an automatic step and repeat reduction camera with precision positioning by applying the theory of light interference, using a He-Ne gas laser for light source. The camera consists of a laser interferometer system, a set of precision mechanism, a numerical control device and a laser frequency stabilizer. The displacement of the working table is measured and located by the laser interferomenter system, so the accuracy of the camera in repeat positioning is better than micron. In this paper, the properties in the design of the laser interferometer system and the problems concerned with application of laser to precision positioning of the working table in the camera are given with some emphasis. At the sametime, it affords major technical parameters and experimental data. At the end of this paper, the analysis of accuracy and the result of calibration of the cameras show that actual accuracy of the cameras is up to about e0.75 micron. Cameras of this type are now used in industrial practice.

本文介绍一种用氦氖气体激光器作光源,以光干涉原理定位的自动分步重复照相 机。该机主要由激光干涉系统、精密机械系统、电子控制机和激光频率稳定器组成。由 于采用激光干涉定位系统直接测量工作台位移,保证重复定位精度高于±1微米。 文中着重介绍激光干涉系统结构设计特点及激光用于精密定位时的有关问题.同时 提供了主要技术参数和实验资料。对整机的精度分析和检定结果说明,产品实际精度可 达到±0,75微米。此种分步相机现已用于工业生产。

This paper describes an application of image holographic method to the photoelastic stress analysis. The results of experimental and theoretical study indicate that the unpolarized light from He-Ne laser is equivalent to circular polarized light. Using this method, isopachic fractional fringe orders can be measured with compensator, and the parallax and drift of fringe pattern can be eliminated. The image of inter-fero-stress Pattern will appear on holographic plate when illuminated by white light. The...

This paper describes an application of image holographic method to the photoelastic stress analysis. The results of experimental and theoretical study indicate that the unpolarized light from He-Ne laser is equivalent to circular polarized light. Using this method, isopachic fractional fringe orders can be measured with compensator, and the parallax and drift of fringe pattern can be eliminated. The image of inter-fero-stress Pattern will appear on holographic plate when illuminated by white light. The photographic images of the stress distributions obtained by this method from models of turbine blade roots and a cover of bearing are presented.

本文介绍了图像全息法在光弹性应力分析中的应用。实验和理论研究的结果都说明由氦 氖气体激光器发出的非偏振光是和圆偏振光等效的。用这个方法,可以通过补偿器测定等和 线分数条纹,可以消除条纹图案的视差和浮动,全息底板可以用白光照明再现干涉应力图 像。本文给出了用实验方法测定的汽轮机叶片根部和轴承瓦盖模型的应力分布。

A new rod gauge using laser beam scanning and digital-pulse technique to determine the diameters in two directions of a hot-rolled steel bar is described, The principle of operation, the parameters, the constructions and the characterestics of the instrument are discussed in some detail. Special attention has been given to the errors produced by various causes during measurement, as well as to the corresponding methods proposed to remove them.

本文介绍了用激光扫描方法和数字脉冲技术检测热轧棒线材直径尺寸的一 种新仪器──双向激光测径仪。文章论述了仪器的原理、参数、结构及性能, 着重讨论了测量中各种因素产生的误差及其相应的解决办法。

 
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