发明授权
- 专利标题： Water penetration-detecting apparatus and optical fiber cable using same
- 专利标题（中）： 水穿透检测装置和使用其的光纤电缆
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申请号： US047357申请日： 1987-05-06
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公开(公告)号： US4812014A公开(公告)日： 1989-03-14
- 发明人: Hiroyuki Sawano , Hideo Suzuki , Yasuyuki Sugawara , Kazunaga Kobayashi , Nobuyasu Sato
- 申请人： Hiroyuki Sawano , Hideo Suzuki , Yasuyuki Sugawara , Kazunaga Kobayashi , Nobuyasu Sato
- 申请人地址： JPX Tokyo
- 专利权人： Fujikura Ltd.
- 当前专利权人： Fujikura Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX61-106290 19860509; JPX61-106291 19860509; JPX61-106292 19860509; JPX62-67108 19870320; JPX62-67109 19870320
- 主分类号： G01M3/04
- IPC分类号： G01M3/04 ; G01M3/16 ; G01N21/88 ; G02B6/44
摘要：
A water penetration-detecting apparatus includes an optical fiber sensor having an optical fiber, and a water-absorbent material 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 is connected to the optical fiber sensor for detecting a bending of the optical fiber.
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