| 摘要 |
PROBLEM TO BE SOLVED: To provide an impact detection sensor with reduced fluctuations in sensitivity direction and sensitivity and its manufacturing method. SOLUTION: The impact detection sensor 1 includes an elastomer 2, an optical fiber 3 into which the elastomer 2 is inserted, and a stress concentration plate 4 which is placed within the elastomer 2 along the optical fiber 3 and allows stress caused by the deformation of the elastomer 2 to be concentrated on the optical fiber 3. The elastomer 2 is provided with a plurality of grooves 5(5e, 5b) having depths reaching the stress concentration plate 4 from the surface of the elastomer 2. COPYRIGHT: (C)2008,JPO&INPIT
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