| 摘要 |
An optical fiber displacement sensor device using a cantilever is provided to use one instrumentation system at plural areas and measure the displacement by using plural FBGs having the different lattice interval. An optical fiber displacement sensor device using a cantilever is composed of a displacement switching member(120) having an inclined surface; a cantilever(110) mounted to have the relative movement for the displacement switching member and installed with a recess(114) to mount an optical fiber sensor(130) at a part of one surface; and the optical fiber sensor fixed at both ends of the recess of the cantilever and attached at the cantilever to be extended and compressed at the area exposed by the recess. The cantilever is longitudinally mounted with an optical fiber sensor mounting groove.
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