The testing principle of the laser heterodyne measurement system is explained.
说明了激光外差测量原理。
In optical heterodyne technique,optical path difference between the signal and local beams,the relative position of detector,ratio of the area of the photo-sensitive surface to the laser spot,and focal length of focused lens,have important effects on the heterodyne efficiency.
在光外差测量中,信号光与本振光的光程差、探测器的相对位置、探测器光敏面相对于激光光斑的大小和聚焦透镜的焦距,对系统的外差效率都有重要影响。
The influences of atmospheric turbulence on interference efficiency due to the angle of arrival fluctuation in the laser heterodyne detection system were presented.
研究了大气湍流情况下到达角起伏对激光外差探测系统干涉效率的影响。
The principle and way of dectecing ultrasonic displacement of solid surfaces with laser heterodyne and phase-lockedloop to demodulate are described.
论述了应用激光外差和锁相环解调原理探测固体表面超声位移的原理、方法，并利用激光外差干涉仪对固体表面的超声位移进行了探测，得到了很好的结果。
A new method of measuring eccentricity of rotary turntable by means of optical heterodyne is described.
本文介绍了一种利用光外差测量原理测量旋转转盘偏心距的新方法。
The Balanced Dual-mixer Heterodyne for Measurement of Phase Difference between two Coherent Lights;
对称双混频外差法测量相干光的相位差
The method for multi-beam laser heterodyne high-precision measurement of the glass thickness
多光束激光外差高精度测量玻璃厚度的方法
Mach Zehnder heterodyne interferometer for high precision displacement measurement
用于位移精密测量的光外差马赫-泽德干涉仪
The Measurement of Water Vapor Isotope Based on Mid-Infrared Difference Frequency Generation
基于中红外差频激光测量水汽分子同位素丰度
Research on a Simultaneous Measurement System of Temperature and Strain Distribution Based on Heterodyne Detection of Brillouin Scattering in Optical Fiber
外差检测式光纤布里渊温度和应变分布同时测量系统研究
The AOM heterodyne interferometer can be used in the case of the accuracy beyond nanometer.
用双声光调制器的外差干涉仪可以实现纳米测量。
Influence of Characteristics of an AOM on the Measurement Accuracy of a Heterodyne Interferometer
外差干涉仪中声光调制器特性对测量精度的影响
Methods Differential spectrophotometry was used to detect the content of paratomol in compound Aspirin tablet.
方法采用差示分光光度法测定其含量。
This paper discussed an opto-heterodyne technique for small-plane-angle measurement with a frequency-stabilized longitudinal Zeeman laser as the light source.
文本用纵向塞曼双频稳频激光器作光源,提出了一种光学超外差法小平面角的精密测量方法.
Study of Photorefractive Adaptive Optical Heterodyne Detection Technology with Pulse Laser;
脉冲激光光折变自适应光外差探测技术研究
Measuring the size of grains in emulsion using the speckle contrast of laser
激光斑纹反差测量乳状液颗粒大小
A NEW TYPE OF GRATING TO MEASURE ABSOLUTE LENGTH AND ITS ERROR CORRECTION
绝对长度测量光栅及误差修正的研究
The Optical Lever Enlarging Method Produced Error Because of the Angle;
光杠杆放大法测量中α角产生的误差
Design of Optical Heterodyne Fiber Sensor to Monitor Dam Deformation
一种监测水坝变形的光外差光纤传感器设计
2-D Optical Super Heterodyne Method for the Fringe Patterns Processing of Photomechanics;
光测力学条纹图象处理的二维光学超外差法
The Polarized Light Based Heterodyne Interference System for the Laser Ultrasonic Signal Detector;
检测激光超声的线偏振光外差干涉系统设计
Experimental Studies on 1.55μm Optical Heterodyne for Coherent Doppler Wind Lidar;
相干激光测风雷达中1.55μm光外差接收实验研究