| 摘要 |
PROBLEM TO BE SOLVED: To provide an impact detection optical fiber sensor allowing easy occurrence of light transmission loss due to bending and compression. SOLUTION: This optical fiber 2 is constituted by intertwining a first linear body 3 and a second linear body 4 being different in elasticity from each other at the outer periphery. For example, the first linear body 3 is a foaming silicone rubber string, and the second linear body 4 is a solid silicone rubber string. COPYRIGHT: (C)2009,JPO&INPIT
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