查询词典 coupler

There are three parts in our design: first, the dual-band branch line coupler provides two equal-power signals with 90° or -90° phase difference in each operating band. Second, the wideband switching circuit controls the two output powers of branch line coupler to excite the antenna structure for producing linear polarization wave or circular polarization wave. Third, the L-shaped fed conventional planar patch antenna is provided to overcome the coupling effect.

整体架构包含三个部分：L形电容耦合馈入式平面天线是为了克服平面式微带天线窄频的缺点；双频枝干耦合器提供天线在操作的两个频率点上各输出两组相差正九十度与负九十度的讯号，最后宽频的切换电路是将枝干耦合器的两组讯号作分配用以激发不同方向的天线以产生线性极化模态或同时激发两个垂直的天线以产生圆形极化模态。

In order to establish the boundary conditions to the equations, we have taken into consideration the fact that a constructive interference at the coupler assures that the laser radiations from both constituent lasers be directed to the coupler output port to which a reflection mirror, defining both laser cavities and executing the mutual injection between two lasers, is attached.

考虑到设置在光纤耦合器的一个输出端口的公共反射镜还担负着实施两个激光器间的相互注入的功能，利用光纤耦合器的变换矩阵以及光场相干叠加的要求，可以确定激光器速率方程组满足的边界条件。

On the generation principles of the special double point of coupler curve,the paper analyzed double point of the coupler curve.

从连杆曲线特殊二重点的产生机理出发，研究具有实二重点轨迹特征的连杆点位置。

Based on the analytic model of an eccentric slider crank mechanism with elastic effects at both joints of the coupler and four coupler Mathieu-typed equations of motion in terms of the generalized coordinates of the system,the extract solution is developed from the improved Hill method with accelerated convergence.

在所建立的连杆接头处具有弹性效应的曲柄滑块机构的动态解析模型以及在广义坐标下推导出的4个马修型运动方程的基础上，由具有加速收敛性的改进希尔法进行了精确求解。

The tests and commissioning results showed that this incomer and coupler automation system, designed with the automation system design platform, had more advantages such as simple configuration, short design periods, useful, easy operation and maintenance,reliability. And this system can completely meet the logic interlock for incomer and coupler in low-voltage system.

现场安装调试及运行结果表明，利用本文建立的设计平台开发的低压配电网一次开关元件操作自动控制系统结构简单，开发周期短，实用性好，现场调试简便，易于操作和维护，可靠性高，能满足国内低压配电网低压进线和母联断路器智能控制系统的要求。

The controller receives, analyzes and processes the command input by operator via the man-machine interface, to adjust and control the controllable light signal generator according to the analysis processing result and the spectrum result checked by the light checker, the controller outputs the adjustment and result via the man-machine interface to the operator, to output light signal for the result of adjustment and control on the controllable light signal generator, via the light coupler to be coupled partly and feedback to the light checker to be checked, thereby forming a closed-circuit, while the light signal coupled to the light output via the light coupler reaches user target spectrum demand.

本发明公开了一种实现光信噪比可调节的光信号源装置及控制方法，所述装置包括：控制器、人机接口、可控光信号发生器、光耦合器、光信号检测器、光信号输出口；控制器接收操作者输入给人机接口的指令并分析和处理，运用分析处理结果、并结合光检测器检测的光谱结果数据来调节和控制可控光信号发生器，控制器将调节过程和调节结果通过人机接口输出给操作者，对可控光信号发生器调节和控制的结果输出光信号通过光耦合器耦合一部分又反馈给光检测器检测，这样形成一个闭环控制，使得通过光耦合器耦合到光输出口的光信号达到用户目标光谱要求。

In Chapter 4, this dissertation realized a broadband uniplanar phase-inverter rat-race coupler using a standard silicon process, and then analyzed this coupler under a lossy condition.

第四章中，使用标准矽制程实作一个具有相位反转器之宽频鼠径耦合器，并详细地分析损耗状态下的耦合器。

Based on the characteristics of railway vehicles, the crashworthy subway vehicle was designed. The design concept of crashworthy car-body was proposed and the energy-absorbing process of the head car impact was divided into four steps: the first step is the rubber buffer of the buffer equipment of vehicle coupler; the second is the buffer with collapsible tube; the third is the cut bolt of vehicle coupler; the fourth is the special energy-absorbing structures and the anti-climbers on the underframe of head car.

针对地铁车辆自身特点进行耐冲击地铁车辆吸能结构设计，提出了耐冲击地铁车辆设计理念，将该地铁头车在撞击过程中的能量吸收过程设计为4级：第1级为车钩缓冲装置缓冲器，第2级为缓冲装置中的压溃变形管，第3级为车钩剪切螺栓，第4级为位于头车前端底架的吸能结构和防爬器等可变形结构。

The major research includes the following three points. First, using finite element method, the influence factors on propagation properties for PMF couplers are analyzed, including the shape of coupler cross-section, the taper of coupler bipyramidal and the angle deviation of the birefringent axes.

基于热-结构-电磁多物理场耦合有限元方法，分析了保偏光纤耦合器的传输特性和耦合系数在熔锥区的变化规律，从而求解耦合模方程，得到偏振光经过耦合器后的光功率分布，继而对保偏光纤耦合器的性能参数分光比、消光比及附加损耗进行理论分析。

In light of such problems as the long production period and the difficulty in controlling the planeness while polishing the surface of the coupler , a new design of the coupler is proposed

针对制作周期太长、控制研磨面平面度难等问题，提出了一种新的耦合器改进方案，并提出了一种可对打磨过程中包层剩余厚度进行实时监控的方法-液滴法。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。