| 摘要 |
PROBLEM TO BE SOLVED: To prevent propagation of vibration through a fixed base or the like on a relay spot in the middle of an optical fiber, and to perform accurate vibration detection, in an optical fiber ring interference type sensor. SOLUTION: A vibration isolation member 17 for preventing vibration of optical fibers La, Lb is provided at least on a spot under a closure 12 for connection for storing the relay spot of the optical fiber in the middle of an optical fiber ring, or under the fixed base 15 for supporting the closure 12 for connection, or inside the closure 12 for connection. COPYRIGHT: (C)2007,JPO&INPIT
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