PROCEDE DE MESURE DU VIEILLISSEMENT DE CABLES ELECTRIQUES
    3.
    发明公开
    PROCEDE DE MESURE DU VIEILLISSEMENT DE CABLES ELECTRIQUES 有权
    法测量电缆的老化

    公开(公告)号:EP2820436A1

    公开(公告)日:2015-01-07

    申请号:EP13703816.2

    申请日:2013-02-13

    IPC分类号: G01R31/11

    CPC分类号: G01R31/021 G01R31/11

    摘要: The method comprises: - a step (503) of injecting at an instant Tinj a reference signal Sar at a point of injection of said assembly, said reference signal having been obtained beforehand by injection (500) of an initial signal Sinit at the level of the injection point at an instant Tinit, by a measurement of the reflected signal resulting from this injection, and by the temporal inversion (501) of said measured signal; - a step (504) of measuring a reflected signal Smes resulting from the propagation of the signal Sar in the assembly of at least one cable; - a step (505, 506) of determining the ageing of the assembly of at least one cable between the instant Tinit and the instant Tinj, said ageing being deduced from the measurement of the reflected signal Smes.

    PROCEDE ET DISPOSITIF D'ANALYSE DE RESEAUX DE CABLES ELECTRIQUES PAR SEQUENCES PSEUDO-ALEATOIRES
    6.
    发明授权
    PROCEDE ET DISPOSITIF D'ANALYSE DE RESEAUX DE CABLES ELECTRIQUES PAR SEQUENCES PSEUDO-ALEATOIRES 有权
    方法和设备分析电缆网络中使用的伪随机序列

    公开(公告)号:EP2082247B1

    公开(公告)日:2010-06-16

    申请号:EP07821594.4

    申请日:2007-10-19

    IPC分类号: G01R31/08 G01R31/11

    摘要: The present invention relates to a method and a device for analysing electric cable networks in order to detect and locate defects in cables comprising at least one branching from N secondary sections extend. The method involves injecting into the network at a plurality of injections points Ei pseudo-random sequences of digital signals Pni(t) that are de-correlated from each other, and collecting at one or more observation points Sj the composite time signals Rj(t) generated by the circulation of the outputted sequence and the reflection thereof in the network impedance discontinuity. The method further comprises computing the correlation between the composite signals and the time-offset pseudo-random sequences and searching for the positions of correlation peaks in order to derive the location of the defects in the network while taking into account the signal propagation speed in the network.

    摘要翻译: 该方法涉及将数字信号的伪随机序列引入注入点的网络中,并且获取所发射序列的循环及其网络的阻抗不连续的反射产生的复合信号。 表示所述复合信号的一部分,并且序列之间的相关值的相关函数,计算基于可变延迟。 延迟的特性值的位置,和一个电缆的缺陷位置是确定性的开采基于对每个相关性,其中所述的序列是不相关的海誓山盟的值。 因此独立claimsoft被包括为用于测试的布线网络,包括数字信号的伪随机序列的两个源的装置。

    SURCOUCHE DESTINEE A RECOUVRIR UN OBJET, NOTAMMENT UN CABLE, POUR LA DETECTION ET/OU LA LOCALISATION D'UN DEFAUT A SA SURFACE
    9.
    发明公开
    SURCOUCHE DESTINEE A RECOUVRIR UN OBJET, NOTAMMENT UN CABLE, POUR LA DETECTION ET/OU LA LOCALISATION D'UN DEFAUT A SA SURFACE 审中-公开
    从头到尾的对象,尤其是电缆,以便检测和/或追踪错误在其表面

    公开(公告)号:EP2994920A1

    公开(公告)日:2016-03-16

    申请号:EP14719313.0

    申请日:2014-04-24

    IPC分类号: H01B7/32

    摘要: An overlayer intended to cover an object in order to detect a fault on a surface of said object, characterised in that it comprises an assembly consisting of a plurality of current-conducting wire elements of different mechanical resistances and a means for insulating said conductive wire elements, each conductive wire element being arranged in such a way as to at least partially cover a surface of said object when the overlayer covers said object, each conductive wire element being arranged to allow same to be connected to a test device for detecting a fault affecting said conductive element.

    摘要翻译: 旨在覆盖的覆盖层,以便检测物体,由不同的机械termoresistencias的电流传导线元件的多个部分并加以绝缘导线元件的手段组件包括一个表面上的缺陷对象,每个导电 线元件被布置:如,以至少部分覆盖所述对象物的表面上。当覆盖层覆盖所述对象,各导线元件被布置成允许用于检测缺陷影响的导电元件的到测试设备上的连接。