说明傅里叶频谱面的滤波处理及编码光栅的衍射效率对图象输出信噪比的影响。
This is mainly influenced by the filtering process in Fourier plane and the low diffraction efficiency of the encoding grating.
实验表明，采用编码光栅投影视觉测量能够高效准确地测量自由曲面的三维轮廓。
Using grating projection and stereo matching based on these constraints, free-form 3-D profiles can be measured efficiently and accurately.
系统中两块编码光栅用透镜互相成倒像，被测物置于其间并且也用透镜成像于观察屏上。
In the system two coded gratings are inversely imaged to each other by a lens, and the tested phase object is placed between and imaged onto an observation screen.
介绍了利用光纤光栅(FBG)波长编码的特点，采用新型分布式FBG传感实现高速列车实时追踪。
By using the wavelength encoding characteristic of fiber Bragg grating (FBG), a new kind of distributed FBG pressure sensor was introduced to achieve the train real time tracing.
研究了一种用彩色条纹对光栅进行数字编码的方法。
A method of digital coding of grating by using color strips is presented.
该系统由倾角传感器、绝对式光栅编码器和嵌入式微处理器组成。
The system is made of obliquity sensor, absolute grating encoder and embedded microprocessor.
论文给出了分析随机波前相位编码体光栅选择性衍射的一种方法。
A diffraction selectivity theoretical analysis method of volume gratings with wave front phase encoding is proposed.
一束激光被分成几束子光束，每子光束具有不同的延时并用以不同方位放置的光栅对它编码。
A laser beam is split into several sub-beams, each of which has different delay time and is encoded by using a grating placed in different azimuth.
这种光存储包含信息编码、光栅元阵列形成及解码过程。
The optical storage process consists of information coding, grating unit matrix building and decoding.
将要处理的图像底片经过郎奇光栅的调制、显影、定影后得到二维的编码片。
The plate to be processed is modulated by ronchi raster and after developing and fixing two dimensional coding photograph is made.
本文对矩形光栅编码图片的衍射零级与其它各级单独所成的象，其衬度能够反转的现象，提出了新的理论分析。
A new theoretical analysis of the contrast reversal images for the zeroth and other diffraction order encoded by a rectangular grating is given.
通过液晶光栅编码可以直接获得被测物体形貌特征点信息，提高了测量速度和效率。
It can obtain the feature point information of measured object directly and improve the measuring efficiency.
介绍了编码式光栅传感阵列的结构及其传感信号的特点。
The construction of the encoding fiber Bragg grating sensor array and the characteristic of its sensing signal are introduced.
对编码式光纤光栅传感系统进行了实验研究，阐述了其市场应用。
Study encoding Fiber Bragg Grating sensing system by experiment, and expound its market application.
在MMS光谱仪中，使用了色散光栅质谱法，并以大口径编码光阑代替了传统狭缝入口。
In MMS Spectrometers, a dispersive-grating geometry with a wide-area coded aperture takes the place of a traditional slit entrance.
通过对光栅角编码器测角原理和偏心误差产生原因的分析，建立了偏心误差模型。
An eccentricity error mathematic model was built up based on the measurement principle of the optical angular encoder and error analysis.
波长编码信号解调是实现光纤光栅多参量、多点分布式传感网络的核心技术之一。
Wavelengthencoded signal demodulation is one of the key techniques to achieve fiber grating distributed sensing network.
该系统利用斜线光纤光栅将光纤光栅应变传感的波长编码信息转换为强度，并且用信号强度与参考光强度的比值作为应变的度量值。
In the system, the wavelength code of strain is converted into the signal intensity, and the ratio of the signal intensity and the referent light intensity is used as the measuring value of strain.
把该编码方法应用于光栅结构光传感器中，实现了维纳斯雕像的三维测量，并给出了三维重建结果。
This coding method is applied to grating structured light sensor, the surface of a statue of Venus is measured, and 3d reconstruction results are given.
南京中科天文仪器有限公司生产机电一体化产品，主要有各类天文仪器、圆光栅编码器、电梯专用编码器系列、数显表等。
NAIRC produces integration of machinery product, Mainly has each kind of astronomy instrument, Incremental rotary encoders, Elevator encoder, Number obviously table and so on.
外极线约束将可能的候选点限制在直线分布，引入编码光用来确定光栅条纹的级次。
Epipolar constraint was applied to limit candidate-matching point to a line distribution and coding structured light was used to tell the grating index.
为了防止突然断电时造成数据错误，增量式光电轴角编码器通常采用零位光栅提供绝对零位信号。
Incremental optical electric axial Angle encoder usually adopts zero position grating providing absolute zero position in order to prevent from data fault during electricity failure suddenly.
本文提出的结构光面扫描三维测量系统是基于机器视觉光栅编码原理的结构光扫描双目视觉测量技术。
The structure light 3-d measurement system is based on the structure light scanning binocular vision measurement of machine vision diffraction grating code principle technology.
金属光栅编码器可以在恶劣环境条件下有效而稳定地工作。
The metal grating encoder can work availably and stably under difficult conditions.
因此，如何对光纤光栅的波长编码信号进行解调是实现光纤光栅传感技术应用的关键。
Therefore, the way of demodulating wavelength coding signal of FBG is the key of application of FBG sensing technology.
因此，对绝对式编码器提取高质量光栅光电信号的方法需作专门研究。
It is thus necessary to carry out a dedicated study on the methods of extracting high quality grating photoelectric signals for the absolute encoders.
因此，反射式金属光栅编码器的制作有较高的难度。
在光栅谱衍射干涉法的基础上，本文提出用色散效应产生的相位体微分干涉条纹，进行实时假彩色编码的原理。
A new principle is proposed to pseudocolor-code the differential interference in the grating-diffraction interferometry with extended white light illumination by using dispersion effect of a prism.
以平行光管和23面棱体为基准，得到存在偏心误差的一组光栅角编码器测量数据。
With a collimator and a 23 polyhedron as measuring datum, a set of optical angular encoder measuring data, which containing the eccentricity error, was obtained.
以平行光管和23面棱体为基准，得到存在偏心误差的一组光栅角编码器测量数据。
With a collimator and a 23 polyhedron as measuring datum, a set of optical angular encoder measuring data, which containing the eccentricity error, was obtained.
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