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    Water penetration-detecting apparatus and optical fiber cable using same
    3.
    发明公开
    Water penetration-detecting apparatus and optical fiber cable using same 失效
    水渗透检测装置和使用相同的光纤电缆

    公开(公告)号：EP0245753A3

    公开(公告)日：1990-04-25

    申请号：EP87106497.8

    申请日：1987-05-05

    申请人： FUJIKURA LTD.

    发明人： Sawano, Hiroyuki ,  Suzuki, Hideo ,  Sugawara, Yasuyuki ,  Kobayashi, Kazunaga ,  Sato, Nobuyasu

    IPC分类号： G01M3/04 ,  G01M3/38

    CPC分类号： G01M3/165 ,  G01M3/047

    摘要： A water penetration-detecting apparatus includes an optical fiber sensor (14) having an optical fiber (16), and a water-­absorbent material (18) disposed along the optical fiber in contiguous relation to the fiber. The water-absorbent material, when absorbing water, expands volumetrically so as to apply a pressure to an outer peripheral surface of the optical fiber to bend the fiber. A detecting means (12) is connected to the optical fiber sensor for detecting a bending of the optical fiber.

    摘要翻译： 水穿透检测装置包括具有光纤（16）的光纤传感器（14）和沿光纤邻接设置的吸水材料（18）。 吸水材料在吸收水时，容积膨胀，从而对光纤的外周面施加压力以使纤维弯曲。 检测装置（12）连接到光纤传感器，用于检测光纤的弯曲。

    Water penetration-detecting apparatus and optical fiber cable using same
    4.
    发明公开
    Water penetration-detecting apparatus and optical fiber cable using same 失效
    Kabel mit optischer Faser zumAufspüreneines Wassereintritts。

    公开(公告)号：EP0245753A2

    公开(公告)日：1987-11-19

    申请号：EP87106497.8

    申请日：1987-05-05

    申请人： FUJIKURA LTD.

    发明人： Sawano, Hiroyuki ,  Suzuki, Hideo ,  Sugawara, Yasuyuki ,  Kobayashi, Kazunaga ,  Sato, Nobuyasu

    IPC分类号： G01M3/04 ,  G01M3/38

    CPC分类号： G01M3/165 ,  G01M3/047

    摘要： A water penetration-detecting apparatus includes an optical fiber sensor (14) having an optical fiber (16), and a water-­absorbent material (18) disposed along the optical fiber in contiguous relation to the fiber. The water-absorbent material, when absorbing water, expands volumetrically so as to apply a pressure to an outer peripheral surface of the optical fiber to bend the fiber. A detecting means (12) is connected to the optical fiber sensor for detecting a bending of the optical fiber.

    摘要翻译： 水穿透检测装置包括具有光纤（16）的光纤传感器（14）和沿光纤邻接设置的吸水材料（18）。 吸水材料在吸收水时，容积膨胀，从而对光纤的外周面施加压力以使纤维弯曲。 检测装置（12）连接到光纤传感器，用于检测光纤的弯曲。

    Optical fiber cable
    7.
    发明公开
    Optical fiber cable 失效
    Glasfaserkabel。

    公开(公告)号：EP0240165A1

    公开(公告)日：1987-10-07

    申请号：EP87301808.9

    申请日：1987-03-02

    申请人： FUJIKURA LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Shamoto, Naoki ,  Suzuki, Hideo ,  Sugawara, Yasuyuki ,  Kawase, Masaaki ,  Shinohara, Hiromichi

    IPC分类号： G02B6/44

    CPC分类号： G02B6/441 ,  G02B6/4402 ,  G02B6/4407 ,  G02B6/4432

    摘要： An optical fiber cable includes a flexible pipe of a plastics material (14), and a group of optical fibers (18) loosely mounted within an axial bore of the pipe and held in contact with an inner surface (16) of a peripheral wall of the pipe. At least one elongated flexible reinforcing member (20) is embedded in the peripheal wall of the pipe and extends along a longitudinal axis of the cable, the reinforcing member being disposed in the vicinity of the group of optical fibers and made of a material having a higher Young's modulus than that of the plastics material of which the pipe is made. The optical fiber cable has a neutral axis (G) extending through the bore of the pipe and defining a line of zero stress when the cable is bent longitudinally in a direction (Y) to dispose the reinforcing member radially inwardly of the group of optical fibers. The group of optical fibers are disposed on the neutral axis, so that the optical fibers are not subjected to axial construction or elongation when the cable is bent in that direction.

    摘要翻译： 光纤电缆包括塑料材料（14）的柔性管和松散地安装在管的轴向孔内的一组光纤（18），并且与光纤的周壁的内表面（16）保持接触， 管道。 至少一个细长的柔性加强构件（20）嵌入在管的周边壁中并且沿着电缆的纵向轴线延伸，加强构件设置在该组光纤附近并且由具有 杨氏模量高于制造管材的塑料材料。 当光缆沿Y方向纵向弯曲时，光纤电缆具有延伸穿过管孔的中性轴线（G），并限定零应力线，以将加强件径向向内放置在该光纤组内 。 该光纤组配置在中性轴上，使光纤在该方向上弯曲时不会受到轴向结构或伸长。