Optical fiber temperature distribution measuring apparatus,...

Details Optical fiber temperature distribution measuring apparatus,... Optical fiber temperature distribution measuring apparatus,...

2011-01-25

2011-01-25

Caputo, Lisa M (Department: 2855)

Thermal measuring and testing

Temperature measurement

Nonelectrical, nonmagnetic, or nonmechanical temperature...

C374S137000, C374S131000, C374S120000, C374S001000

Reexamination Certificate

active

07874725

ABSTRACT:
An optical fiber temperature distribution measuring apparatus and a method for measuring optical fiber temperature distribution, provided with a light source for inputting a pulse light to an optical fiber to be measured, a signal detecting unit for detecting a received light intensity of a predetermined light included in a backscattering light generated by an input of the pulse light in the optical fiber to be measured, and a signal processing unit for calculating a value corresponding to a variation of the received light intensity due to a hydrogen molecular absorption of the optical fiber to be measured based on the received light intensity of the predetermined light, to compensate the received light intensity of the predetermined light corresponding to a temperature of the optical fiber to be measured based on the value.

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