赤外線法による外壁剥離診断における減算処理による診断精度向上に関する実験的研究

概要

論文の詳細を見る
On the thermography method, inspectors distinguish the removed part of the exterior wall finish, from difference of temperature between the removed parts and the sound parts on the thermograph. However, temperature difference occur by the several factors except the removement of finish. And depending on the inspection condition, enough temperature difference isn't gotten between the removed part and the sound part. The purpose of this study is to improve the precision to distinguish the removed part, by the subtraction processing between multi-thermograph in the different time. The author experimented using the examination walls and the real buildings. As the result, by using the thermographs which subtracted in the night or the early morning from the thermographs in the daytime, precision of distinction was improved. Also, when indoors was heating, the influence of heating temperature could be removed from the thermograph to subtract the thermographs in the sunless time from the thermographs in the time when the wall receive solar radiation. By using a subtracted thermographs, necessary temperature difference became 0.3℃ on the northern wall, and 0.5℃ on the other direction walls, to distinguish between the removed parts.
社団法人日本建築学会の論文
2000-02-28