查询词典 armor grating

The results show that the ladder-shaped IDT can overcome shortcomings of adding reflection grating or reflector to simulate the internal reflection of IDT in traditional design and simulation,greatly reduce complexity of the simulation with δ function model,imitate its internal reflection with evolutionary structure and then simulate with Matlab.

结果表明，该结构克服了传统设计仿真时需加入反射栅或反射器来模拟叉指换能器内反射的缺点，大大缩减了δ函数模型仿真的繁杂性，通过自身结构的优化来模拟叉指换能器内反射，并运用δ函数对其建模，然后通过Matlab对其仿真。

Under the oblique incidence cases, the optical path difference of light beam distributed on the edge of steps can be calculated by using the geometric method. Then, according to the multi-slit Fraunhofer diffraction, the expression of diffraction intensity of reflection step grating is deduced.

针对反射性阶梯光栅，利用几何方法计算出斜入射情况下光束在台阶边缘的光程差的分布情况，根据多缝夫琅和费衍射推导出反射型阶梯光栅的衍射光强表达式。

Studies on basic working principles and designs of fiber lasersThe basic working principles as well as the major characteristics of laser and fiber lasers are firstly reviewed,including the interaction between light and matter, the laser oscillation conditions and the spectrum distribution,the gain characteristic and spatial hole burning effect,the influence of external environment on the stability of laser output and the actual limits of fiber laser bandwidth;The designs of bidirectional single-mode Er-doped fiber ring laser and multi-wavelength laser is then discussed,respectively;The characteristics of dynamic grating reflection spectrum of the fiber saturable absorber is systematically analyzed.?

在激光型光纤传感器的设计、实验现象的理论解释等方面做了如下的研究工作：光纤激光器的基本原理与设计方案概述了激光和光纤激光器的基本原理，包括光与物质的相互作用，激光振荡的条件及频谱分布等激光产生的基本原理：掺铒光纤的增益性质，空间烧孔效应和外界扰动对激光输出稳定性的影响，光纤激光器的实际极限带宽等光纤激光器的相关知识；分别讨论了双向单纵模环形腔激光器和多波长激光器的设计方案；系统地分析了掺杂光纤饱和吸收体中形成的动态光栅的反射谱特性。

This refractometer is polarization dependent,and the polarization dependency raise with the increase of grating tilted angle.

同时这种折射计具有偏振依赖性，随着光栅倾斜角的增大偏振依赖性提高。

The power-referenced refractometer based on tilted fiber Bragg grating is investigated theoretically by complex mode coupled mode theory.

利用复模式耦合模理论分析了基于闪耀光纤布拉格光栅功率检测的折射计中不同设计参数对折射计性能的影响。

Meanwhile, the larger the relative aperture of the holographic concave grating on aspherical surface is.

同时，利用较大相对孔径非球面全息凹面光栅，可使平场光谱仪的结构更紧凑，从而可实现平场光谱仪的小型化。

Meanwhile, the larger the relative aperture of the holographic concave grating on aspherical surface is, the more compact the flat-field spectrograph will be.

同时，利用较大相对孔径非球面全息凹面光栅，可使平场光谱仪的结构更紧凑，从而可实现平场光谱仪的小型化。

A new design of Fiber Bragg Grating strain sensor with rhombic encapsulation structure was developed.

研制了一种新颖的菱形光纤布拉格光栅低温传感器。

The application of fiber Bragg grating sensors in the monitoring system of the Shenzhen citizen center roof spatial truss structure was presented.

介绍了光纤光栅传感器在深圳市民中心屋顶网架结构中的应用情况。

The ray tracing map of a concave grating ruled on toroidal surface proves the feasibility of the method.

通过刻划在非球面基坯上的凹面光栅验证了光线追迹方法的可靠性。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！