Diffraction Characteristics Analysis of Ultra-Short Pulsed Gaussian Laser Beam by Reflecting Volume Grating 反射型体光栅对超短脉冲高斯光束衍射特性分析
Study on Uncooled Infrared Imaging Device with Reflecting Optically Readout; The Spectral Analysis of the Fiber Grating Arrays Encoder/ Decoder 反射式光读出非致冷红外成像阵列器件研究光纤光栅阵列编解码器反射谱性能研究
Study on tuning and sensing of dual reflecting peak fiber Bragg grating 双反射峰光纤布拉格光栅调谐与传感研究
The Instantaneous Strain Measurement Using Reflecting Diffractive Grating Method 利用反射式衍射光栅进行瞬态应变测量
The system can be used to measure skin ′ s reflecting spectrum by using a grating instrument system and a linear CCD sensor. 该系统采用精密光栅分光系统和CCD光电接收器件,能够快速检测皮肤反射光谱。
The article touches upon the principle of displacement measuring system consist-ing of diode laser focusing lens, reflecting main scale grating, quarternary index scale grat-ing photosensor. 系统由半导体激光器、聚焦镜头、反射式标尺光栅、四裂相指示光栅和光电接收元件组成。
Based on the theory of optic-fiber bending attenuation and Bragg grating reflecting theory, this paper studied the application of distributed fiber crack sensor system and Bragg grating sensor system to civil engineering. 本文从光纤弯曲损耗理论和Bragg反射理论出发,研讨了分布式裂缝光纤传感系统和光纤Bragg光栅传感系统的工程应用。
The differential integral equation derived from Maxwell's equations was used to rigorously deal with the wavelength-sized surface relief trapezium-shaped reflecting grating in TE ( transverse electric) polarization. 本文采用麦克斯韦(Maxwell)方程微分积分方程对波长尺寸的梯形反射光栅在TE模式(横向电场)偏振状态入射下,进行严格理论的计算和分析。
A method of using the reflecting diffractive grating to measure the instantaneous strain is described in this paper. 介绍了利用反射式衍射光栅进行瞬态应变测量的方法。
In this paper, the Intensity function of reflected Fraunhofer diffraction by reflecting grating with right angle grooves has been derived in the cases of the normal incidence and unnormal incidence of rays and the ruled grooves deviated from right angles. 本文导出了直角刻槽反射光栅在正入射和非正入射以及刻槽偏离直角等情况下,反射夫朗和费(Fraunhofer)衍射强度分布表达式;
Measurement of thermal diffusivity of solid materials by using laser induced transient reflecting grating technique 用激光引发热反射栅方法测量固体热扩散率
A reflecting hologram diffraction grating was fixed to the stage to form a closed loop displacement measuring system. 固定在工作台上的全息衍射光栅实现了对工作台位移的高精度闭环检测。
Analysis of Reflecting Spectrum of Bragg Grating Reduction Undulation in Short and Long Period Fibers 短周期与长周期光纤Bragg光栅约化波动反射谱分析
The theory and experiment techniques about measuring the thermal diffusivity of solid materials by using laser induced transient reflecting grating is introduced. 阐述了用脉冲激光引发瞬态热反射栅的方法来测量固体材料热扩散率的理论、实验装置和实验技术。
The physical model of real ruled grating is purposed, the corresponding expression of diffraction efficiency is given, and reflecting blazed grating, which is fixed on the 10.6 μ m IR laser with 97.2 percent in the first order diffraction efficiency in Littrow form, was made. 建立了实际刻划光栅的物理模型,给出了相应的衍射效率表达式,并研制出了在Littrow安装下一级衍射效率达到97.2%的大功率10.6μm红外激光器用反射式闪耀光栅。
The angular displacement of reflecting surface is measured in accordance with the direction change of Moire fringes caused by the inclination of grating. self-imaging plane. 利用光栅自成象面的倾斜引起莫尔条纹方向变化来测量反射表面的角位移。