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- Moire fringe technique 莫尔条纹法
- This paper presents the concept of the" overt Codes in the moire fringe" and "covert codes in the coded moire fringe"and implemented program in anti - counterfeiting technique. 本文提出了“Moire条纹显型密码”及“编码Moire条纹隐型密码”的概念及其在防伪技术中的实施方案。
- The computer gathers the image of moire fringe by USB camera. 通过编程控制USB摄像头可采集到莫尔条纹的图像。
- The technique has the advantages of measuring circuit simply, having a low requirement for Moire fringe signals, a high subdivision number and good real-time property, and can be used for static and dynamic measurements. 该方法测量电路简单,对莫尔条纹信号要求低,细分数高,实时性好,可用于静态、动态测量。
- Phenomenon of Moire fringe is explain by ordinal number equation and diffraction theory respectively. 对莫尔条纹现象,分别用序数方程原理与衍射干涉原理解释粗光栅、细光栅的莫尔条纹现象。
- The difference and similarity between shadow moire fringe and Newtonian circlet are discussed from basic principles. 从基本原理上讨论了一种新型的实验力学研究方法面外云纹与牛顿环的联系与区别。
- The result is that moire fringe is unlike Newtonian circlet in many respects,particularly in essence. 从而阐明,面外云纹是由于影像干涉形成的,牛顿环的形成是属于相干光的定域干涉,它们具有本质上的不同。
- The design principle for simulating moire fringe in Authorware and Flash is presented, and detailed method of approach is also given. 阐述了在Authonware和Flash中模拟莫尔条纹的设计原理,并给出了具体实现方法。
- In the measurements,the focal lengths of positive and negative lens are determined by the tilt angle, of the Moire fringe. 在测量中,根据莫尔条纹的斜角确定正、负透镜的焦距。
- In this paper a method of the three-dimensional object recognition with rotation-invariant based on moire fringe is proposed. 本文提出一种基于莫尔条纹的三维物体旋转不变识别方法。
- In this paper, an experiment of test scale of straightedge is introduced by theprinciple of the Moire fringe shift amplifier. 本文介绍利用莫阿条纹位移放大器原理检验直尺刻度实验.
- This paper mainly introduces a kind of means about subdivision of grating moire fringe and its device used on digital spherometer system. 数字球径仪是对传统球径仪的革命,本文主要介绍了一种莫尔条纹信号软硬件相结合的细分方法及其装置在数字球径仪的应用。
- Non-diffracting beams and Moire fringe technology is able to work in short,middle and long distance with high measuring resolution. 由于无衍射光莫尔条纹技术具有高的对心分辨精度和适用于长、短距离测量的特点,在此技术的基础上研制了激光准直跟踪和定位测量系统。
- Using multiple-beam, we need not measure the tilt angle of Moire fringe, but record the position of the object when sharpness of the fringe is the best. 该法无需测量莫尔条纹偏折角;而是记录条纹对比度最好时试件的位置.
- Based on the lateral Moire fringe of the gratings, the change of Moire fringe was researched by using Fourier spectrum while the frequency of a grating was changed. 用傅里叶频谱分析方法研究了横向莫尔条纹中一个光栅倍频时莫尔条纹的变化 .
- Yuan Xiaobin,Li Huaiqiong.Digital Subdividing Technique for Grating MOIR Fringes and Its Error Analysis[J].North Western Optical Instrument Plant,2001,21(1):113-115. [5]袁小滨;李怀琼.;光栅莫尔条纹数字细分技术及其误差分析[J]
- This article briefly introduces the most popular system design technology:VHDL and ISP logic devices, and design a kind of high integrated grating digital readout devices on the basisi of Moire fringe divisiontheory. 方案中将当今最流行的系统设计技术VHDL和在系统可编程(ISP)逻辑器件作了简要介绍,并介绍了一种基于光栅莫尔条纹细分理论的高集成度的光栅位移变送器。
- Inverse projected fringe technique 反向条纹投影技术
- The quality index of grating signal, especially the quality index of grating secondary moire fringe signal is analyzed. The circuit using to dynamically inspect the quality of grating signal is realized by harmonic analysis. 对光栅信号的质量指标,主要是对光栅到莫尔条纹信号质量指标进行了分析,并通过采用谐波分析法,对光栅信号质量进行动态综合检测的电路进行了实现。
- This paperproposes the principle of subdivision for the moire fringe signal by the calcuiation method and derives the expression for calculating the interpolated position value of the signal. 本文介绍了用“计算法”对莫尔条纹信号进行细分的原理,给出了计算细分值的表达式。