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激光     
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  laser
    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
更多       
  a laser
    The Method of Testing Stray Light in a Laser Raman Spectrometer
    激光拉曼分光计中杂散光的测试方法
短句来源
    A laser interferometer for sample stage positioning
    激光定位干涉系统
短句来源
    THE DESIGN OF THE Kθ LENS USED ON A LASER SCANNING FOR AUTOMATIC INSPECTION OF OBJECT SIZE
    激光扫描尺寸自动检测用的Kθ透镜设计
短句来源
    The design of a laser flow-cytometer
    激光流式细胞计的设计
短句来源
    The Research of On-line Measuring Method by a Laser for the Two-dimension Regular Sizes
    二维分布规则尺寸的激光在线测量方法的研究
短句来源
更多       
  beam laser
    A three beam laser scattering system for simultaneously measuring the size distribution and velocity of particle is proposed in the paper. The constitution,measuring principle,signal sampling and data processing of the system are described.
    提出了同时测量粒子尺寸和速度的三光束激光散射系统,叙述了系统的组成、测量原理、以及信号采集和数据处理。
短句来源
    The paper describe a method using four beam laser tracking interferometer,so we can use the system's hardware redundant ability to accomplish system self calibration and losing information recover.
    本文讨论的四路激光跟踪干涉测量系统 ,运用冗余法测量原理 ,进行系统的自标定及丢光的自恢复 ;
短句来源
    Applications of redundancy technique in a multi beam laser tracking interferometer system for 3 D coordinate measurement are presented.
    介绍了冗余技术在多路激光跟踪干涉三维坐标测量系统中的应用。
短句来源
    The four beam laser tracking system for 3D coordinate measurement is presented. By taking advantage of the redundancy of the system,self calibration can be realized.
    介绍了四路激光跟踪干涉三维坐标测量系统的工作原理 ,由于系统具有冗余特性 ,可以实现系统的自标定。
短句来源
  “激光”译为未确定词的双语例句
    Principles of Laservision
    激光电视原理
短句来源
    On Development of Grain Quantitative Quantizer-Laser Scanner to Name Granites Rock
    关于数字式颗粒定量仪的研制——激光扫描花岗岩类岩石定名仪
短句来源
    Measurement Diameter System with Laser-CCD and Microcomputer
    激光-CCD及微机测径系统
短句来源
    Laser-Imaging:Moderne radiologische Bilddokumentation
    激光成象——现代放射图象记录
短句来源
    Principle and Test of Laser-Numerical Tester of Parallel on Micrometer
    激光数字式千分尺平行度检查仪的原理及测试
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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.
      
更多          
  a laser
The composite latex particles and composite materials were determined and characterized using a laser particle size analyzer, transmission electron microscopy or scanning electron microscopy.
      
Under a laser-induced ultra-high pressure and high strain rate, structural steels and composite materials undergo plastic deformation.
      
A laser vision sensing based on the adaptive tungsten inert gas (TIG) welding system for large-scale aluminum alloy components was established to fit various weld groove conditions.
      
A scanning mode is the key technology in a laser metal deposition shaping (LMDS) fabrication process.
      
The evidences on the structural change of acetone and the stability of acetone clusters are found by a laser ionization mass spectrometer and the results are interpreted from theoretical analysis based on the DFT/B3LYP method.
      
更多          
  beam laser
Results of an experimental study of a two-beam laser method of recording and heterodyne detection of elementary microstructures (microgratings) in "thick" recording media are described.
      
The measurements, carried out by on-line collinear fast-beam laser spectroscopy, yield the hyperfine constantsA andB of the 7s and 7p1/2 states in Ra II, of all states of the excited 7s 7p configuration and the 7s 7d3D3 state in Ra I.
      
A test of the accuracy of atomic-beam laser spectroscopy
      
The method of on-line collinear fast-beam laser spectroscopy has been applied using frequency-doubling of cw dye laser radiation in an external ring cavity.
      
The hfs of the3P2 state of the 6s 6p configuration of atomic barium has been determined for137Ba, applying the collinear fast-beam laser spectroscopy.
      
更多          
  laser vibrometer
The Lamb waves are recorded and visualized using a scanning laser vibrometer.
      
We also introduced the characterization of nano structures based on laser vibrometer and piezoresistive effect, the latter method was first time applied to investigate a doubly daped nanobeam with a thickness of about 200 nm.
      
Sound and vibrational signals exchanged by honeybees during the performance of wagging dances were simultaneously recorded by means of a microphone and a laser vibrometer.
      
Using a laser vibrometer, it was observed that both BNKLBT and PZT exhibited a surface displacement pattern indicative of coupling of the radial mode vibration with the thickness mode vibration.
      
In order to validate the measurements of the FBG sensor, the transverse fluctuating bending displacement Y of the cylinder was also measured using a laser vibrometer.
      
更多          


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,...

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。

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。

A method of laser interference measurment of vibration is described- method of phase interpolation and modulation.This method is applied to measure the amplitude of high frequency vibrator and to calibrate accele- rometers of high frequency.Measuring amplitude range of this system is 1500Ato 500A.Accuracy of measurment is 0.6% to 2%。The measurement is automatical recorded by a specialized electronic computer.

本文叙述一种激光干涉测振方法——相位细分调制法。该法可用于测量高频振动台振幅、校准高频加速度计,该系统测量的振幅范围为1500A到500A,测量准确度为0.6到2%。测量结果用专用电子计算机自动记录。

 
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