Interferometric measuring device forming a spacial interference pattern
    1.
    发明授权
    Interferometric measuring device forming a spacial interference pattern 失效
    形成空间干涉图案的干涉测量装置

    公开(公告)号:US5710629A

    公开(公告)日:1998-01-20

    申请号:US432118

    申请日:1995-05-05

    IPC分类号: G01B9/02 G02B6/12 G02B6/122

    摘要: Two input beams (10, 20) of the interferometric measuring device, achieved according to the integrated optics technology, are broadened so as to form two spread flat beams creating an interference pattern (30). Two detectors (14, 15) supply two measuring signals, preferably in phase quadrature, representative of two points of the interference plane.

    摘要翻译: PCT No.PCT / FR93 / 01194 Sec。 371日期:1995年5月5日 102(e)日期1995年5月5日PCT提交1993年12月6日PCT公布。 出版物WO94 / 14028 PCT 日期1994年6月23日根据集成光学技术实现的干涉测量装置的两个输入光束(10,20)被加宽,以形成形成两个扩展的平坦光束,产生干涉图案(30)。 两个检测器(14,15)提供表示干涉平面两点的两个测量信号,最好是相位正交。

    Electro optic voltage sensor with optic fiber
    2.
    发明授权
    Electro optic voltage sensor with optic fiber 失效
    带光纤的电光电压传感器

    公开(公告)号:US5936395A

    公开(公告)日:1999-08-10

    申请号:US826375

    申请日:1997-04-09

    IPC分类号: G01R15/24 G01R19/00 G01R31/00

    CPC分类号: G01R15/241

    摘要: A voltage sensor comprises a helicoidal winding formed by an optic fiber having at least one zone sensitive or sensitized to an electrical field having a 2nd order non-linear electro optic effect. The sensitization process of the optic fiber can be achieved by a polarization process under an electric field. The voltage sensor preferably comprises a device enabling the electrical field lines to be homogenized in the region where the helical winding is located. The phase difference induced by the optic wave by electro optic effect caused by the electrical field and representative of the voltage to be measured, can be measured by polarimetric or interferometric detection.

    摘要翻译: 电压传感器包括由具有至少一个对具有二阶非线性电光效应的电场敏感或敏感的区域的光纤形成的螺旋形绕组。 光纤的敏化过程可以通过电场下的极化处理来实现。 电压传感器优选地包括能够使电场线在螺旋绕组所在的区域中均匀化的装置。 通过由电场引起的电光效应引起的光波引起的相位差和代表待测电压的相位差可以通过偏振或干涉检测来测量。

    Manufacture of a buried wave guide at several burying depths
    3.
    发明授权
    Manufacture of a buried wave guide at several burying depths 失效
    在几个埋藏深度制造埋地波导

    公开(公告)号:US5708750A

    公开(公告)日:1998-01-13

    申请号:US640744

    申请日:1996-05-06

    摘要: Method of locally embedding a waveguide in a substrate. A mask is arranged on the upper face of the substrate. An edge of the mask obliquely intersects, at a low predetermined angle A, the waveguide to define a partially masked transition portion between non-masked portion and a fully masked portion of the waveguide. After a stage in which the waveguide is embedded in the substrate, the mask is withdrawn. The portion of the waveguide is thereby embedded at a depth greater than portion, portion forming a gradual adiabatic transition between both portions. The method is useful in the manufacture of sensors.

    摘要翻译: PCT No.PCT / FR94 / 01263 Sec。 371日期:1996年5月6日 102(e)日期1996年5月6日PCT 1994年10月31日PCT PCT。 WO95 / 13553 PCT出版物 日期1995年5月18日将波导局部嵌入衬底的方法。 在基板的上表面上设置有掩模。 掩模的边缘以低的预定角度A与波导相交,以限定非掩模部分和波导的完全掩蔽部分之间的部分掩蔽的过渡部分。 在波导嵌入衬底的阶段之后,掩模被取出。 因此,波导的部分被嵌入大于部分的深度,部分在两部分之间形成渐变的绝热过渡。 该方法在传感器的制造中是有用的。

    Device for measuring current by optic fiber and dual polarization
analysis
    4.
    发明授权
    Device for measuring current by optic fiber and dual polarization analysis 失效
    通过光纤测量电流的装置和双极化分析

    公开(公告)号:US5256872A

    公开(公告)日:1993-10-26

    申请号:US883204

    申请日:1992-05-14

    CPC分类号: G01R33/0322 G01R15/246

    摘要: The device measures the current intensity in a conductor by FARADAY effect in a monomode optic fiber. It comprises a separator-polarizer formed for example by two coplanar half-disks of polarizing foil, whose polarization directions form a required angle, 90.degree. or 45.degree.. Photodiodes formed by a two-quadrant photodetector in the shape of a disk of the same diameter as that formed by the separator-polarizer, are located behind from the separator-polarizer. The photodiodes are connected to an electronic unit.

    摘要翻译: 器件通过单模光纤中的FARADAY效应来测量导体中的电流强度。 它包括例如由偏振方向形成所需角度90°或45°的两个共面半圆形的偏振片形成的分离器偏振器。 通过由分隔器偏振器形成的具有相同直径的圆盘形状的两象限光电检测器形成的光电二极管位于隔板偏振器的后面。 光电二极管连接到电子单元。

    Medium voltage static switch
    5.
    发明授权
    Medium voltage static switch 失效
    中压静态开关

    公开(公告)号:US5148064A

    公开(公告)日:1992-09-15

    申请号:US664304

    申请日:1991-03-04

    摘要: The medium voltage static switch is formed by serial connection of power semi-conductors, preferably of MOS type, controlled by a capacitive line. A diode is connected in parallel with the capacitor of the capacitive line between the gates of two adjacent semi-conductors. The control voltage is applied to a single control input, between the gate and source of the first stage semi-conductor.

    摘要翻译: 中压静态开关由通过电容线控制的MOS型的功率半导体的串联连接形成。 二极管与两个相邻半导体的栅极之间的电容线的电容并联连接。 控制电压施加到第一级半导体的栅极和源极之间的单个控制输入端。