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US 2006/0133450 A1Published application
Optical fiber temperature sensor and temperature measuring method
AssigneeHitachi Cable, Ltd.
InventorsTamaou Shioji, Shigeo Uchiyama
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Abstract
An optical fiber temperature sensor employs a holey fiber. The holey fiber has an optical fiber concentrated part that a predetermined length of the holey fiber is concentrated in a spot region that is included in a space to be measured in temperature distribution. The optical fiber concentratedpart has a bend formed by looping or winding the holey fiber.
Claims8
An optical fiber temperature sensor, comprising:
- a holey fiber,
- wherein the holey fiber comprises an optical fiber concentrated part that a predetermined length of the holey fiber is concentrated in a spot region that is included in a space to be measured in temperature distribution.
A temperature measuring method, comprising the steps of:
- placing an optical fiber near to a spot region of a temperature measuring object;
- and
- measuring a temperature at the spot region based on a change in transmitted light when light is inputted into the optical fiber,
- wherein the optical fiber comprises a holey fiber, and
- the holey fiber comprises an optical fiber concentrated part that a predetermined length of the holey fiber is concentrated in the spot region.
2 more elements
Dependencies are inferred from the claim text.