Composite cable containing light waveguides and electrical conductors
    1.
    发明授权
    Composite cable containing light waveguides and electrical conductors 失效
    包含光波导和电导体的复合电缆

    公开(公告)号:US5189718A

    公开(公告)日:1993-02-23

    申请号:US862475

    申请日:1991-04-02

    IPC分类号: G02B6/44 H01B9/00

    摘要: Disclosed is a cable in which one tube holding light waveguides is connected by a plastic web to another tube holding metallic current carrying conductors. When buried in the earth, the cable may be located by means of a magnetic field produced by the current carrying conductors, but the cable retains the advantage of the tube carrying the light waveguides being dielectric.

    摘要翻译: 公开了一种电缆,其中一个保持光波导的管通过塑料网连接到另一个保持金属载流导体的管上。 当埋在地球中时,电缆可以通过由载流导体产生的磁场来定位,但是电缆保持了承载光波导是电介质的管的优点。

    Magnetic locatable figure-8 cable
    2.
    发明授权
    Magnetic locatable figure-8 cable 失效
    磁性定位图8电缆

    公开(公告)号:US5636305A

    公开(公告)日:1997-06-03

    申请号:US122167

    申请日:1993-09-17

    IPC分类号: G02B6/44

    CPC分类号: G02B6/447

    摘要: Disclosed is a dielectric cable having two tubes separated by a web, one tube holding at least one light waveguide therein and the other tube holding a material which creates a magnetic field capable of above ground detection when the cable is buried.

    摘要翻译: 公开了一种电介质电缆,其具有由网分离的两个管,一个管保持其中至少一个光波导,另一个管保持当电缆被埋置时产生能够高于地面检测的磁场的材料。