| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of detecting water or moisture absorption distribution of material by which the portion which is apt to absorb water or moisture of a material, for example, a copper-plated laminated board, etc., can be specified by detecting the water or moisture absorption distribution of the material in a visualized state. SOLUTION: In this method of detecting water or moisture absorption distribution of material, a microwave having the same natural frequency as water has is projected upon the material, for example, the copper-plated laminated board 1 for a fixed period of time and the temperature distribution of the board 1 is measured by using a thermograph while or after the microwave is projected. Then the water or moisture absorption distribution of the board 1 is displayed in a visible state. COPYRIGHT: (C)2003,JPO
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