Optical fiber cable for sound wave sensing
AssigneeNEC Corporation
InventorsYutaka YANO, Eitaro MISUMl
Life of this patent
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Abstract
An optical fiber cable for sound wave sensing that uses a straight optical fiber and is capable of suppressing directivity is provided. The optical fiber cable for sound wave sensing includes a cover part (10) that is capable of covering a straight cable core (11) and is provided with a sound wave refraction part (12) which refracts sound waves made incident roughly perpendicularly to a longitudinal direction of the cable core (11) and makes the sound waves be incident diagonally to the longitudinal direction of the cable core (11). The cover part (10) includes a gap filling part (23) which covers the sound wave refraction part (12).
Claims9
An optical fiber cable for sound wave sensing, comprising:
- a cover part that is capable of covering a straight cable core and is provided with a sound wave refraction part which refracts sound waves made incident roughly perpendicularly to a longitudinal direction of the cable core and makes the sound waves be incident diagonally to the longitudinal direction of the cable core.
Dependencies are inferred from the claim text.