Temperature distribution measurement system, the temperature distribution measuring device and a temperature distribution measuring method

A measured temperature distribution temperature distribution measurement system the validity of the transfer function can be readily assessed to be used for correction of, and an object thereof is to provide a temperature distribution measuring device and a temperature distribution measuring method. A temperature distribution measuring system includes an optical fiber 24, a laser light source 21 is optically connected to the optical fiber 24, a photodetector 26 for detecting light backscattered by the optical fiber within 24, photodetector measured temperature distribution obtained from the output of the vessel 26 to have a temperature distribution measuring unit 27 that performs correction calculation using the transfer function. Actual temperature distribution measuring unit 27 obtains the actual temperature distribution of where the optical fiber 24 is laid, by calculating the difference between the measured temperature distribution and the actual temperature distribution after correction, determining the appropriateness of the transfer function. .FIELD 1