METHOD FOR INSPECTING OPTIC-FIBER TEMPERATURE MEASURING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a method for inspecting an optic-fiber temperature measuring apparatus wherein a measurement position and a temperature of a temperature measuring optic fiber placed in a temperature measurement region can be easily and efficiently inspected. SOLUTION: The optic-fiber temperature measuring apparatus makes a light pulse incident to an input end of an optic fiber 3 from a light source, and analyzes time taken until backscattered light of Raman scattering occurring in the optic fiber 3 by the light pulse returns and intensity of a signal which returns to measure a distance to a measurement position and a temperature. In this case, the optic fiber 3 is placed for each of temperature measurement regions, and also a part of the optic fiber 3 is surrounded by a box 11, wherein a heat source 12 for heating or cooling is placed in the box 11 to inspect determination and evaluation of the temperature and the measurement position of the optic fiber 3.