光栅

A stabilised optical fiber interferometric measurement system made with a 3×3 coupler and fiber Bragg gratings is presented. By employing the fiber Bragg gratings as in-fiber reflective mirrors, the system interleaves two fiber Michelson interferometers together that share the common-interferometric-optical path.

针对这一问题，提出利用光纤3×3耦合器和光纤光栅构成光路复合在一起的两个光纤迈克尔逊干涉仪构成的光纤干涉测量系统。

Light transporting behaviors are mostly concentrated in region of the slits as well as the interspaces of the two layers, and at different resonant wavelength the electric field and energy distributions are different.

研究结果有望为亚波长金属光栅器件的设计提供理论指导。

Re-vectorization is performed on the basis of original vectorization by obtaining the initial parameters such as line types and slope. Inuring tricing it can adjustthe parameter adaptively. To decrease the influence of noise pixels, we designed a stop probe to detect tracing-stop conditions. Process of re-vectorization is performed recursively until quality of graph entity is satisfactory.Finally, some key technologies for 2D graphs reconstruction are studied. The issues concerned include the recognition and presentation of topologic relations among graphs entities and a directed and weighted graph model established to describe the relations and techniques on dimension driven.

在获得对图素识别质量的评价之后，质量较差的图素被输入到错误自动校正器进行错误校正处理，本文提出&二次矢量化&的错误校正思想，二次矢量化是在初步矢量化所获得知识的基础之上，取得初始参数，并在跟踪过程中动态校正参数，在跟踪结束时引入跟踪终止检测探针以消除光栅图像中黑白噪音的影响，使得算法具有较强的抗噪音干扰能力，校正后的图素仍需进行质量评价，未能通过评价的图素需递归执行二次矢量化算法。

I made up 6 supports for the grating and two lugs to hold the boiler from tipping over.

我提出了6支持为光栅和两个lugs举行锅炉从小费。

The maximums of all kinds of errors arecalculated and corresponding correction and compensation methods are provided.

在修正光栅累积误差以及对温度进行补偿之后，系统完全可以实现O.1μm／100mm的位移测量精度。

Fiber grating is one of the most promising and representative passive optical fiber devices.

目前，光纤光栅已成为最具有发展前途，最具有代表性的光纤无源器件之一。

The optic fiber Bragg grating is the most one of the optic passive devices which developed quickly these years.

光纤Bragg光栅是近年来发展最为迅速的全光纤无源器件之一。

On Some Problems of Signal Processions for Grating Transducers.

精密光栅位移传感器的若干信号处理问题研究

In this paper we describe the equation of Moire fringes obtained for amplitude gratings illuminated by scatting light.

本文推导了发散光照明幅光栅产生的莫尔条纹方程，并讨论了三种特殊的莫尔条纹轨迹。

Using this method, the interval between grating lines can be subdivided directly and then measured.

介绍一种采用CCD为测量元件的光栅位移传感器的设计方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。