| 摘要 |
PROBLEM TO BE SOLVED: To accurately manage a vessel wall state, by widely and accurately estimating the vessel wall state (for example, wear state) of a vessel inner wall, corresponding to a predetermined region, based on the data obtained by measuring the temperature of the predetermined region on the surface of the outer wall of the vessel only in a partial period. SOLUTION: This managing method includes: a step of measuring the temperature of each of regions obtained by dividing an analysis area set on the outer wall surface of the vessel by thermography; a thermal contrast calculating step of calculating the thermal contrast as the difference between the temperature of each region and the average temperature of the analysis area; a peak time acquiring step of estimating the temperature variations from a short measurement period as a whole, to determine the peak time of the thermal contrast in each region calculated in the thermal contrast calculating step; and a peak time distribution acquiring step of determining the peak time distribution of the thermal contrast in the analysis area; based on the peak time of the thermal contrast in each region determined by the peak time acquiring step. COPYRIGHT: (C)2009,JPO&INPIT
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