| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively check the presence/absence of rupture in a portion connected to a brace material by a simple method without destroying a pressure receiving slab. SOLUTION: A temperature changing means for forcibly heating or cooling the pressure receiving slab, and a temperature-distribution measuring means for measuring the distribution of the temperature of the surface of the pressure receiving slab are used. A single pressure receiving slab or a plurality of them are forcibly heated or cooled from the outside by the temperature changing means, and then, the presence/absence of the rupture in the connected portion is checked on the basis of the temperature distribution of the surface of the pressure receiving slab which is measured by the temperature/distribution measuring means. COPYRIGHT: (C)2010,JPO&INPIT
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