光栅

The cross sensitivity of strain and temperature is a key problem for fiber Bragg grating sensors.

解决应变和温度的交叉敏感，实现应变和温度同时测量一直是光纤光栅传感器研究的关键问题。

The transmission characteristics of the filter composed of a Sagnac loop and fiber Bragg gratings are studied in detail.

详细分析了由光纤光栅和萨尼亚克环构成的透射滤波器的特性。

It is found that the wavelength shift of the fiber Bragg grating is nearly consistent with the temperature variation.

发现光纤布喇格光栅波长偏移与温度变化趋势基本是一致的。

Xue-Wu Tunnel, which is located in Provincial Highway No.7, is the first case to use Fiber Bragger Grating Sensors Real Time Monitoring System to measure tunnel deformation.

雪雾隧道的光纤监测系统，不但使用先进的光栅式光纤技术，并设置了远端即时监控的功能，还可於灾害发生的第一时间主动发布电话语音简讯，隧道养护人员便可透过网际网路随时随地掌握现场的即时影像及监测数据。

The conclusions show that with γP0 increasing the nonlinear dispersion curves shift to the negative region of δ,the upper branch of the curve will form a ring when γP0 exceeds a critical value,while the anomalous dispersion region of group velocity dispersion induced by fiber Bragg grating vanishes,group velocity dispersion becomes only one normal dispersion region.

结果表明：随着βg2的增加，非线性色散曲线的上、下两支向δ的负值区移动，当超过某一临界值时，曲线上支开始形成环，这时光纤光栅引起的群速度色散中的反常色散区消失，全部变成正常色散。

Introduced the basic principle of the measurement of liquid bulk elastic modulus, designed and assembled the experimental equipment.

介绍了采用超声光栅效应测量液体体积弹性模量基本原理，设计组装了实验测量装置。

However effect of this strain difference on central wavelength shift of fiber Bragg grating is often ignored in practical application.

实际测量中往往忽略此扰动对光纤光栅反射谱中心波长的影响，则必然带来测量误差。

Among them , it has introduces the function of chromatic dispersion of the grating and optical detection emphatically - Photocell .

其中着重介绍了光栅的色散作用以及光学检测器—光电池。

Circular polarization is one of microwave equipment with broad application.its the mostly function is switch linearly - polarized wave into circular polarized wave.grating- circular polarization is one of circular polarization,its advantage is simple structure and ease of processing.it is prone to expand high power and high efficiency range.because circular polarization have expand application..

光栅圆极化器是其中的一种，它具有结构简单，加工实现容易，易于向高频率、高功率应用扩展等优点。

It makes use of the geometric relations between an ellipse and its circumcircle and inscribed circle.

引言对于象光栅显示器这样一类可视化的设备，其图形完全由显示器像素的亮度和色度形成。

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。