A device that connects different transmission media; for example, from twisted pair to fiber optic. 连接不同传输介质(如双绞线和光纤)的设备。
The shape, size and light transmitting ability of the twisted optical fiber are discussed. 本文论述光纤倒像器中扭转光学纤维的形状和尺寸及其特别的传光性能。
The geometric relevance to deformation of the twisted fiber bundle was analyzed and the influence of twisting on performance parameters of the bundle was revealed by energy method. 分析了加捻纤维束的变形几何关系,利用能量法揭示了加捻对纤维束性能参数的影响。
The analytical results show that the curing residual stresses of the twisted fiber composites in which there are different coefficient of thermal expansion due to curing can be decreased greatly. 分析结果表明:加捻纤维束构成的复合材料,由于纤维适当加捻,可以大大减弱纤维与基体各具不同的热膨胀系数而产生的固化残余应力。
Interference Method for Measuring Verdet Coefficient of Twisted Fiber Rings 扭转光纤环Verdet系数的干涉法测量
Study on Polarization Properties of a Twisted DBR Fiber Laser 扭转DBR光纤激光器的偏振特性研究
The problem of residual thermal stresses in the composites containing twisted fiber bundles due to curing can be solved in energy method. 含有加捻纤维束的复合材料由于固化而产生的热残余应力问题,可以用能量法获得解答。
This article presents a method to obtain the equilibrium differential equations for calculating static stress of twisted blades based on the concept of fiber deformation. 本文从纤维变形概念出发,独立导得扭曲叶片平衡微分方程组,其结果与J。
It has demonstrated theoretically that outgoing light can be changed into circular polarization light when the twisted fiber length is a half of beat length and twisting angle is p/ 2. The experiments show that this method for producing circular polarization light is feasible and simple. 从理论上证明了扭转的光纤长度为1/2拍长,扭转角度为p/2时,出射光变成圆偏振光。实验表明,这种产生圆偏振光的方法是可行的,且比传统方法简单、紧凑。
Different alternative solutions have been presented to realize a broadband interactive access network, such as installing optical fiber or upgrading the existing copper network with ADSL for twisted pair or hybrid fiber coax for CATV networks. 实现宽带交互接入网有各种不同的解决方案,如建立光纤网,用双绞线对的ADSL对现有铜线网络进行升级,或在有线电视网中采用光纤同轴混合电缆。
We analysed two kinds of optical fiber ring resonator structure made of twisted fiber, and indicated that the two kinds of structure can keep Faraday rotation and can be used in current sensors and optic fiber gyros. 对两种扭转光纤环行腔结构进行了理论分析,表明这两种结构能有效地保持法拉第效应,可用于电流传感和光纤陀螺。
Structural State Detection with Twisted Type Fiber Optic Sensing Array and OTDR Technology 基于光时域反射技术与缠绕式光纤传感阵列的结构状态监测方法
A Novel Intensity Modulating Twisted Optical Fiber Strain Transducer 一种新颖的强度调制型绞合式光纤应变传感器
A novel FBG wavelength demodulation system using twisted high birefringence fiber was presented. The characteristic of twisted high birefringence fiber was investigated in theory, and math expressions were given. 提出了一种基于扭转高双折射光纤实现光纤光栅波长解调的新型解调系统,对高双折射光纤光栅扭转特性进行了详细的理论推导,给出了数学表达式。
The paper mainly studied the air-jet textured processing for twisted glass fiber yarn, and analysed the effects of the chief parameters on the texturing and breaking strength of the textured yarn. 主要研究玻璃纤维有捻长丝纱的变形制造工艺及工艺参数对变形纱变形效果和断裂强度影响。
Beat lengths of single-mode fibers were measured by determining the output polarization ellipticity ε c of a circularly polarized beam of light incident on the twisted single-mode fiber diode laser and a 1.34 μ m Nd: YAP laser were used as monochromatic light sources. 本文通过以圆偏振光入射于扭转的单模光纤并测定输出偏振光的偏振光椭圆率得到光纤的拍长度。工作在1.3μm的半导体激光器和Nd:YAP激光器用作单色光源。
Prestressing effect of twisted fiber yarn in Composites 复合材料中加捻纤维束的预应力效应
Twisted Type Fiber Optic Sensing Array and Signal Processing with Neural Network 缠绕式光纤传感阵列及其信号的神经网络处理
Effects of temperature on the performance of twisted optic fiber loop 温度对扭转光纤环性能的影响
The thermal residual stresses can be indicated as a function of the properties of fibers and matrix materials and geometry of twisted fiber bundle. 这种热残余应力可以表示为纤维、基体材料性质以及纤维束几何参数的函数。
A Wavelength Demodulation Method Using Twisted High Birefringence Fiber 利用扭转高双折射光纤实现波长解调的方法
The communication network of conventional DCS mainly uses wired channels, such as twisted pair wire or optical fiber, but under some circumstances the wireless DCS will be a better solution. 常规DCS系统的通信网络主要采用有线信道(如光缆、电缆等)构成数据链路,但在许多情况下,采用无线组网方式会具有更大的优势。
The polarization characteristics of a twisted DBR fiber laser are investigated. Analytic formulae for the polarization mode beat ( PMB) frequency and polarization direction are derived. 研究扭转DBR光纤激光器的偏振特性,并导出PMB频率和偏振模方向的解析公式。
Using the microbend characteristic of the multimode optical fiber, a novel twisted fiber torsion sensor is demonstrated firstly. The range of torsional angle is from 0 ° to 90 °. 利用多模光纤的微弯特性,提出并实现了一种新颖的缠绕式光纤扭角传感装置,其扭角测量范围大于90°。
Covered yarn isa complex yarn with twisted or twist-less fiber as the core and continuous filament wrapping around the core. 包覆纱是一种以有捻或无捻纤维为纱芯,外面包缠连续长丝的复合纱。
By utilizing the behavior of twisted fiber yarn, prestressing composites can be made. 利用加捻纤维束的力学性能,可以制成预应力复合材料。
Analysis of Interface Stresses in Twisted Fiber Composites due to Curing 加捻纤维复合材料固化界面应力分析
Firstly, the geometric effect and stress effect in twisted optical fiber was solved using the coupled mode theory, and the dielectric constant variation under twist stress was discussed. 首先利用耦合模理论求解了单模光纤扭转的几何效应和应力效应,研究了扭转应力下的介电常量变化。
This terminal may take the existing coaxial cable network as well as the twisted pair line network access equipment, simultaneously also can take the next step optical fiber to the home ( FTTH) optical fiber access equipment. 本终端可以作为现有的同轴电缆网络以及双绞线网络的接入设备,同时也能作为下一步的光纤到户FTTH的光纤接入设备。
The current access network technologies mainly include xDSL access technology based on metal cable, Cable Modem access technology based on HFC, Ethernet access technology based on five twisted pair, optical fiber access technology and broadband wireless access technology. 目前的接入网技术主要有基于金属线缆的xDSL技术、基于HFC的CABLEModem技术、基于五类双绞线的以太网接入技术,以及光纤接入技术和宽带无线接入技术等。