1)  polarization-maintaining fiber coupler
保偏耦合器
1.
The optics principle and functions of fused polarization-maintaining fiber coupler is determined by propagation properties.
熔锥型保偏耦合器的传输特性决定了其光学原理与功能的实现。
2)  Polarization-Maintaining
保偏
1.
Research on High-temperature-stability Polarization-maintaining Fiber Coupler with Mini-size for Fiber Gyro;
光纤陀螺用小尺寸高温度稳定性保偏光纤耦合器的研制
2.
Vector modulation instability at the arbitrary polarized direction in polarization-maintaining fiber;
保偏光纤中任意偏振方向矢量调制不稳定性
3.
We have studied modulation instability in polarization-maintaining step-wise decreasing fiber(SWDF) not only in anomalous dispersion regime but also in normal dispersion regime when the angle of the polarized direction and the birefringence axes is arbitrary.
利用光脉冲在非线性双折射光纤中传播时所遵守的相干耦合非线性薛定谔方程,研究了保偏色散阶跃光纤(SWDF)中偏振方向与双折射轴成任意角度时、在反常色散区和正常色散区所产生的调制不稳定性。
3)  High polarization maintaining
高保偏
4)  polarization-maintaining fiber
保偏光纤
1.
Polarization-maintaining fiber for fiber-optic gyroscope;
适用于光纤陀螺的保偏光纤特性研究
2.
Coupling model of fused polarization-maintaining fiber couplers is built on the basis of coupling mode theory of optical waveguide.
耦合系数会直接影响到偏振光经过耦合器熔锥区后的光能量分布,从而影响保偏光纤耦合器的耦合性能。
3.
The polarization-maintaining fiber coil in a fiber optic gyro(FOG) is a sensitive element,its loss will increase when it works in radiation environment such as the spatial,and the performance of FOG also degracles.
构成光纤陀螺敏感器件的保偏光纤环在辐射环境中损耗会增加,陀螺的精度随之降低,从而限制了光纤陀螺在空间中的应用。
5)  polarization maintaining fiber
保偏光纤
1.
Beat length measurement of polarization maintaining fiber;
保偏光纤拍长的测量方法
2.
Optical fiber magnetic field sensor is obtained by coating the TbDyFe film around the naked polarization maintaining fiber by mean of DC magneton sputter technology.
通过直流磁控溅射镀膜,将磁致伸缩材料———铽镝铁被覆在一段去掉保护层的保偏光纤上,得到铽镝铁被覆保偏光纤结构的磁传感单元。
3.
From the point of view of optic system limitation of fiber optic gyro,the phenomena of polarization interference which suffered from the fusion error of polarization maintaining fiber and unperfect optical element is studied.
从光纤陀螺光学系统缺陷角度,研究了由于光纤陀螺保偏光纤融接误差及光学器件的不完善引起的偏光干涉效应,理论分析并实验研究了偏光干涉效应对传输光谱的影响及其对光纤陀螺性能的影响。
6)  PMF
保偏光纤
1.
Simulation and experiment on polarization mode coupling in PMF based on OCDP;
基于OCDP的保偏光纤偏振模式耦合仿真及实验
2.
The Research of Measurement Method for Bridge Using PMF;
保偏光纤桥梁变形测量方法研究
3.
The intermodal interference in Elliptical-core Polarization Maintenance Fiber(E-core PMF) is investigated in this paper,and the relationship between interference output intensity distribution and phase difference of LP01 and LPeven11 mode is given.
对椭圆芯保偏光纤的模间干涉现象进行了仿真研究,得到了其干涉输出光强分布同模间相位差之间的关系。
参考词条
补充资料:传动:液力耦合器


以液体为工作介质的一种非刚性联轴器﹐又称液力联轴器。液力耦合器(见图 液力耦合器简图 )的泵轮和涡轮组成一个可使液体循环流动的密闭工作腔﹐泵轮装在输入轴上﹐涡轮装在输出轴上。动力机(内燃机﹑电动机等)带动输入轴旋转时﹐液体被离心式泵轮甩出。这种高速液体进入涡轮后即推动涡轮旋转﹐将从泵轮获得的能量传递给输出轴。最后液体返回泵轮﹐形成周而復始的流动。液力耦合器靠液体与泵轮﹑涡轮的叶片相互作用產生动量矩的变化来传递扭矩。它的输出扭矩等於输入扭矩减去摩擦力矩﹐所以它的输出扭矩恆小於输入扭矩。液力耦合器输入轴与输出轴间靠液体联繫﹐工作构件间不存在刚性联接。液力耦合器的特点是﹕能消除衝击和振动﹔输出转速低於输入转速﹐两轴的转速差随载荷的增大而增加﹔过载保护性能和起动性能好﹐载荷过大而停转时输入轴仍可转动﹐不致造成动力机的损坏﹔当载荷减小时﹐输出轴转速增加直到接近於输入轴的转速﹐使传递扭矩趋於零。液力耦合器的传动效率等於输出轴转速与输入轴转速之比。一般液力耦合器正常工况的转速比在0.95以上时可获得较高的效率。液力耦合器的特性因工作腔与泵轮﹑涡轮的形状不同而有差异。它一般靠壳体自然散热﹐不需要外部冷却的供油系统。如将液力耦合器的油放空﹐耦合器就处於脱开状态﹐能起离合器的作用。

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