查询词典 Bragg diffraction

Current measurement based on giant magnetostriction material and fiber Bragg grating.

基于超磁致伸缩材料和光纤光栅的交流电流测量。

On the basis of analyzing the principle of fiber Bragg Grating strain sensor,a method of measuring projectile muzzle velocity is put forward.

在对光纤布拉格光栅应变传感原理分析的基础上，提出了一种易实用化的，能够实现武器弹丸炮口初速测试的方法，介绍了系统的基本组成，对光栅布拉格传感器弹丸炮口速度测试原理和方法进行了分析。

We compare the effect of eliminating the chirp by means of linearly chirp fiber Bragg grating, normal dispersion fiber and F-P cavity.

因此我们认为光纤光栅消啁啾是消除脉冲中心部分的啁啾，脉冲前后沿啁啾消除情况，决定于啁啾的类型。

In the temperature sensing, the theory of fiber Bragg grating temperature sensing has first been proposed, the characteristic of the FBG temperature sensing was analyzed, it was deduced that the sensitivity coefficients of first-order and second-order ,and experimental findings was protracted, the gained polynomial better inosculate with the theory value. The experiment was processed in the low temperature , the thermo-optic coefficient was emended in the polynomial of the normal temperature ,the result was accorded with the sensing character of the normal and low temperature ,and it was resolved that the theory account of the normal and low temperature did not accord with the experiment.

在温度传感方面，主要从光纤布拉格光栅的温度传感模式出发，对光纤布拉格光栅的温度传感特性进行了分析，推导出了光纤光栅的一阶与二阶温度灵敏度系数，并对实验数据进行了拟和，所得多项式和理论值吻合的很好，并对低温传感进行了实验，将在常温下得出的多项式进行了热光系数的修正，所得的结果同时符合常温与低温的传感特性，解决了低温与常温情况下的理论计算与实验的不一致性。

Osmometer. Fiber grating sensor is a new generation of international fiber-optic sensor, with the nature of explosion-proof, anti-strong electromagnetic interference, anti-lightning, can easily use the WDM technology in a single fiber in the series Multiple fiber Bragg grating sensor, thus forming quasi-distributed measurement and so on.

光纤光栅传感器是目前国际上新一代光纤传感器，具有本质防爆、抗强电磁干扰、防雷击，能方便地使用波分复用技术在一根光纤中串接多个光纤光栅传感器，从而形成准分布式测量等优点。

Based on fiber Bragg grating, the authors develop an on-line temperature monitoring system for power cables and measure outer surface temperature of cables under different laying modes; analyze the relation among cable temperature, ambient temperature and load of cable lines.

为此设计了基于光纤光栅的电缆温度在线监测系统，实测了不同敷设方式下电缆的表皮温度；分析了电缆温度与环境温度以及线路负荷间的关系；采用等效热路法，由监测到的电缆表皮温度拟合出电缆的实际载流量，实现了对电缆温度及载流量的在线监测，确保电缆运行的安全性与经济性。

A fast simulation method for sampled fiber Bragg gratings with periodic index distribution .

折射率周期分布取样光纤Bragg光栅的快速分析方法。

Further analysis shows that this is caused by the long-period fiber gratings phase matching condition,which is different from that of Bragg grating.

进一步的分析指出，这是由长周期光纤光栅不同于Bragg光纤光栅的相位匹配条件决定的。

First order sea echo, which contain the information of ocean surface current, is firstly separated from sea echo through prepossessing. MUSIC is then applied to extract the bearings of the signals at every Bragg shift.

该算法首先通过预处理从海洋回波中分离包含海流信息的一阶回波，然后针对其中可分辨的每一个Doppler频移上的信号，采用MUSIC算法求其多个存在方位。

One is about Lord Bragg. In Britain he is the target of much backbiting, often motivated by ill-disguised envy for his success and his sheer industry (he is a prolific writer and radio presenter, among other commitments).

其中一些就是关于 Bragg阁下的，在英国他是众多谗言攻击的目标，那些诋毁他的人经常毫不掩饰地表现出对他的成功和他所从事的纯粹行业的嫉妒（除了其他工作，他还是一个多产作家和电台主持人）。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。