2011 Fiscal Year Final Research Report
Establishment of Distance Heating IR Thermography for Whole Wall Area of Concrete Structure
| Project/Area Number |
22760432
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Building structures/materials
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| Research Institution | 防衛大学校 |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Keywords | 保全技術 / 赤外線サーモグラフィ / 分光放射特性 / コンクリート |
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| Research Abstract |
In order to inspect whole wall area of concrete structure efficiently, a distance heating IR thermography was developed. The main subjects were the following three ; Efficiency improvement of radiant heating, Development of distance heating and Development of data analysis method against irregular heating. According to investigating combinations between spectral absorptivity of concrete and spectral emissivity of heater, both a blackbody type and a far infrared type can heat a concrete wall more efficiently than a near infrared type. As a result of consideration of the spectral transmissivity of infrared lens, the lens made of sulfuration Zinc can transmit a radiant energy the most efficiently. The pulse phase thermography was applied to data analysis and the proposed system could identify experimentally the flaw part from irregular heated concrete specimen.
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