光栅

Based on the design of key aspects, the particle swarm optimization algorithm is used to design a flattened broadband transmission spectrum with transmission loss of nearly 50%.

根据设计中的关键技术，利用粒子群优化算法设计了长周期光纤光栅传输损耗为50％的平坦传输损耗谱。

The experiment result indicates that the curve of time-temperature has good follow character and temperature difference less than 1 ℃. So it can accurately measure temperature of cable.

通过对标准的热电偶温度传感器与光纤光栅温度传感器的对比实验，表明该系统测量时间－温度变化曲线跟随性好，温度差均小于1℃，符合电力电缆温度状态在线监测的使用要求。

A low-loss rectangular-passband multiplexer including a three-arm interferometer coherently connected to a waveguide grating router, resulting in a passband substantially of type N=3, without intrinsic loss.

本发明提供了一种低损耗的矩形通带复用器，包括相干连接到波导光栅路由的三臂干涉仪，形成大致为N＝3类型的通带，而没有本征损耗。

More than ten years ago,"the negative day" the numerical control line cutting engine bed first applies and the actual production, starts the control bench is uses the transistor separative element assembly to become, after but uses the integrated circuit, now to is using the direction which the microcomputer controls to develop, Therefore this definition design "the electrical fire colored thread cutter automatic control" is by 8031 shrapnel machine took the control core, step-by-steps the electrical machinery achievement to actuate the electrical machinery, the diffraction grating a closed-loop control system which constitutes as the position examination part.

十多年前，&负旦型&数控线切割机床首先应用于实际生产，最早控制台是由晶体管分离元件组装而成，逐渐采用集成电路，现在正向采用微型计算机控制的方向发展，因此本论文设计的&电火花线切割机的电气控制系统&是以89C55单片机作为控制核心，步进电机作为驱动电机，光栅作为位移检测元件而构成的一个闭环控制系统。

Using the sensitive characteristic of fiber grating, the standard thread steel bar has been measured in our experiments. The data measured by FBG and resistance strain chip are compared with their theoretical values.

利用光纤光栅作为传感元件，对螺纹钢标准拉伸试验试件的拉伸应变特性进行了分析与测量，采用电阻应变片作为对比测量，并与理论值进行了比较。

To improve dispersion compensation capabilities of chirped long-period fiber grating for fiber communication, the method using thin-clad chirped LPFG is proposed.

为了提高啁啾长周期光纤光栅光纤通信的色散补偿能力，提出了利用薄包层啁啾LPFG进行色散补偿的方法。

Different fiber optic light grid's spreading a feeling machine can have a different work wave-length, so can make use of to reply to use a technique for a cent, fiber-optic unite many fiber optic light grids to spread a feeling machine to make distribute type diagraph in one.

光纤光栅传感器除了具有一般光纤传感器的优点之外，还具有FBG波长编码的特性，它使FBG抗干扰能力强，易于组网复用，实现准分布式测量，可以运用在恶劣环境的场合，是传统传感器的理想替代品。

Aiming at the problem in the existing voxelization algorithms, a block-based algorithm is presented: GPU clipping method is used to voxelize the surface in every block, and ray intersection method is adopted to generate seeds filling the inner/outer space of blocks; among blocks, three seed planes are designed to help seeds span the blocks, so that a great deal computation for intersection is avoided.

提出以分块为基础的高分辨率实体体素化算法：在分块内部，采用基于图形处理器(Graphics Processing Unit， GPU)的切面光栅法对分块表面体素化过程进行加速，采用射线求交方式生成种子并进行块内填充；在分块之间，设计了3方向的种子扩散面及跨块扩散机制，避免因分块而导致的大量几何求交运算，提高了效率。

According to the requirements of precision conformal dose delivery, the side focused and tongue-groove structure of multi-leaf collimator is determined, and genetic algorithm is utilized to optimize the leaf end shape, which results in the improvement of penumbra size and uniformity.

根据剂量精确适形的要求，确定了多叶组合光栅侧面的聚焦和榫槽结构，使用遗传算法对叶片端面形状进行了优化设计，使端面产生的半影大小和一致性得以改善。

The optical bistability is observed in the latter laser. By applying equations, the condition of forming self-written grating, reason of single mode lasering and suppressing effects on all side modesis presented.

同时利用速率方程在对饱和吸收光纤中自写入光纤光栅的形成进行了理论分析，给出了形成条件、解释了单频激光形成原因和对边模有效的抑制作用。

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。