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13 条记录 (耗时 0.051 秒)

    Coaxial cable tap with slitted housing and non-piercing tap insert
    1.
    发明授权
    Coaxial cable tap with slitted housing and non-piercing tap insert 失效
    同轴电缆丝锥带有开口的外壳和非穿孔的插头

    公开(公告)号：US5945634A

    公开(公告)日：1999-08-31

    申请号：US658430

    申请日：1996-06-05

    申请人： Gerald L. Shimirak ,  Philip Vail ,  Alexandru S. Gliga ,  Nelson M. Shen ,  Nils Wydler ,  Gary Wagner ,  Mel Nance

    发明人： Gerald L. Shimirak ,  Philip Vail ,  Alexandru S. Gliga ,  Nelson M. Shen ,  Nils Wydler ,  Gary Wagner ,  Mel Nance

    IPC分类号： H01R9/05 ,  H01R24/42 ,  H02G15/08 ,  H04B5/00 ,  H04H20/76 ,  H01J5/00

    CPC分类号： H04B5/0018 ,  H01R24/42 ,  H01R9/0509 ,  H02G15/085 ,  H04B5/0012 ,  H01R2103/00 ,  H04B5/0081 ,  H04B5/0087 ,  Y10S439/916

    摘要： A method of forming a tap into an intermediate point on a continuous coaxial cable, and a coaxial cable tap housing suitable for forming such a tap. The tap housing includes a recess and an alignment element having a predetermined spatial relationship with the recess. The recess has an entry, an exit and a passage connecting the entry and exit. When the tap housing is fixed to a cable, the exit of the recess is closer to the outer conductor of the cable than the entry of the recess is to the outer conductor. The alignment element is used to position a cutting tool which is inserted through the entry of the recess to form an opening in the outer conductor and a cavity in the dielectric under the opening. A tap insert, which includes a coupler assembly, is mounted to the housing, and the coupler assembly is inserted through the entry of the recess and through the opening into the cavity formed in the cable. In specific embodiments, the recess and opening are elongated.

    摘要翻译： 将龙头形成在连续同轴电缆上的中间点的方法，以及适于形成这种龙头的同轴电缆分接头外壳。 抽头壳体包括凹部和与凹部具有预定空间关系的对准元件。 凹槽有入口，出口和连接入口和出口的通道。 当分接头壳体固定在电缆上时，凹槽的出口比凹槽的入口更靠近电缆外导体。 对准元件用于定位插入穿过凹部的入口的切割工具，以在外部导体中形成开口，并且在开口下的电介质中形成空腔。 包括耦合器组件的抽头插入件安装到壳体，并且耦合器组件通过凹部的入口插入并通过开口插入到形成在电缆中的空腔中。 在具体实施例中，凹槽和开口是细长的。

    Attenuation across optical fiber splice
    3.
    发明授权
    Attenuation across optical fiber splice 失效
    跨光纤接头的衰减

    公开(公告)号：US4629316A

    公开(公告)日：1986-12-16

    申请号：US545413

    申请日：1983-10-25

    申请人： Nelson M. Shen ,  Robert Zimmerman

    发明人： Nelson M. Shen ,  Robert Zimmerman

    IPC分类号： G01M11/02 ,  G01M11/00 ,  G02B6/00 ,  G01N21/84

    CPC分类号： G01M11/35

    摘要： This invention provides a method and apparatus for making certain measurements across a splice of a first optical fiber and a second optical fiber, then calculating the actual decibel attenuation across the splice for optical signals transmitted through the fibers during actual use. The method of this invention involves measuring the optical power P.sub.2 in the second fiber with the fiber ends separated longitudinally a certain distance, then measuring the optical power P.sub.1 in the second fiber with the fiber ends positioned close together for effecting the splice. The attenuation is calculated from the formuladB=10 log(P.sub.1 /RP.sub.2)where R is a predetermined constant for the fibers being spliced.

    摘要翻译： 本发明提供一种用于在第一光纤和第二光纤的拼接上进行某些测量的方法和装置，然后计算在实际使用期间通过光纤传输的光信号的拼接的实际分贝衰减。 本发明的方法包括测量第二光纤中的光功率P2，其中纤维端部纵向间隔一定距离，然后测量第二光纤中的光功率P1，其中光纤端部靠近在一起以实现接头。 根据公式dB = 10log（P1 / RP2）计算衰减，其中R是被拼接的光纤的预定常数。

    Optical fiber water sensor
    4.
    发明授权
    Optical fiber water sensor 失效
    光纤水传感器

    公开(公告)号：US5430815A

    公开(公告)日：1995-07-04

    申请号：US14040

    申请日：1993-02-05

    申请人： Nelson M. Shen ,  David A. Horsma ,  Marc F. Moisson ,  Narendra Kulkarni

    发明人： Nelson M. Shen ,  David A. Horsma ,  Marc F. Moisson ,  Narendra Kulkarni

    IPC分类号： G01M3/04 ,  G01M3/38 ,  G01N19/10 ,  G02B6/00 ,  G01N5/02 ,  H01J5/16

    CPC分类号： G01M3/047 ,  G01N19/10

    摘要： An optical fiber water sensor includes a mandrel having a convex or concave shape adjacent to an optical fiber which is adjacent to a water swellable material held in a reservoir. Upon coming in contact with water, the material swells and deforms a section of the optical fiber about a contour defined by the mandrel thus attenuating a signal propagating through the fiber which is detected by an optical detector to indicate the presence of water.

    摘要翻译： 光纤水分传感器包括具有邻近光纤的凸形或凹形形状的心轴，该光纤与容纳在容器中的水可溶胀材料相邻。 当与水接触时，材料围绕由心轴限定的轮廓使一部分光纤膨胀并变形，从而衰减通过光学检测器检测到的光纤传播的信号，以指示水的存在。

    Optical isolator system and method
    6.
    发明授权
    Optical isolator system and method 失效
    光隔离器系统及方法

    公开(公告)号：US5734762A

    公开(公告)日：1998-03-31

    申请号：US529170

    申请日：1995-09-15

    申请人： Ching Ho ,  Yue-Syan Jou ,  Sunny K. Hsu ,  Nelson M. Shen ,  Gengxin Li

    发明人： Ching Ho ,  Yue-Syan Jou ,  Sunny K. Hsu ,  Nelson M. Shen ,  Gengxin Li

    IPC分类号： G02B6/24 ,  G02B6/26 ,  G02B6/32 ,  G02B6/42 ,  G02B6/27

    CPC分类号： G02B6/2746 ,  G02B6/241 ,  G02B6/32 ,  G02B6/4207

    摘要： An optical isolator system and method improving the manufacturability of the system, including fabricating a unitary tubular optical isolator system in two parts which are soldered together. The tubular system includes an internal disk to protect the isolator from heated solder during joinder of containment portions. The optical isolator system includes tubes to space polarizer, analyzer, and isolator portions.

    摘要翻译： 一种提供系统可制造性的光隔离器系统和方法，包括将两个部件中的一体式管​​式光隔离器系统制造在一起。 管状系统包括内部盘，用于在密封部分的联接期间保护隔离件免受加热的焊料的影响。 光隔离器系统包括用于偏振器，分析器和隔离器部分的空间管。

    Determining splice attenuation
    9.
    发明授权
    Determining splice attenuation 失效
    确定接头衰减

    公开(公告)号：US4659217A

    公开(公告)日：1987-04-21

    申请号：US755408

    申请日：1985-07-15

    申请人： Nelson M. Shen ,  John P. Arrington

    发明人： Nelson M. Shen ,  John P. Arrington

    IPC分类号： G02B6/24 ,  G01M11/00 ,  G01M11/02 ,  G02B6/00 ,  G02B6/28 ,  G01N21/01 ,  G01N21/59

    CPC分类号： G01M11/33 ,  G01M11/35

    摘要： A method and apparatus for determining a dB loss across an optical fiber splice includes the steps of determining a first maximum detected optical signal when the fiber ends are moved relative to each other in a X direction, determining a second maximum optical signal when the fiber ends are moved relative to each other in a Y direction, determining a third optical signal when the fiber ends are optimally substantially aligned, determining a fourth optical signal when subsequent to the fiber ends actually being secured to each other.

    摘要翻译： 用于确定跨越光纤接头的dB损耗的方法和装置包括以下步骤：当光纤端在X方向上相对于彼此移动时，确定第一最大检测光信号，当光纤端接时确定第二最大光信号 在Y方向相对于彼此移动，当光纤端部最佳地基本对准时确定第三光信号，当光纤端点之后实际上被固定到彼此时确定第四光信号。

    Linearization circuits and methods
    10.
    发明授权
    Linearization circuits and methods 失效
    线性化电路和方法

    公开(公告)号：US6055278A

    公开(公告)日：2000-04-25

    申请号：US638551

    申请日：1996-04-26

    申请人： Ching Ho ,  Abraham Y. Jou ,  Nelson M. Shen

    发明人： Ching Ho ,  Abraham Y. Jou ,  Nelson M. Shen

    IPC分类号： H04B10/155 ,  H04K1/02 ,  H04L25/03 ,  H04L25/49

    CPC分类号： H04B10/58 ,  H04B10/504

    摘要： A predistortion circuit and method provides signals to oppose and cancel an anticipated phase and frequency distortion in a coupled electrical system. The predistortion circuitry includes first and second subcircuits which include opposing diodes, providing 180 degree out-of-phase and in-phase signals to produce second, third and higher order predistortion outputs.

    摘要翻译： 预失真电路和方法提供信号以反对并消除耦合电气系统中的预期相位和频率失真。 预失真电路包括第一和第二子电路，其包括相对的二极管，提供180度的异相和同相信号以产生第二，第三和更高阶预失真输出。