Internal hot air pressure excited concrete defect infrared detection method and system
By utilizing the internal cavity of a concrete structure for hot air pressure excitation, combined with infrared thermal imaging scanning, the shortcomings of detection under external heating methods are solved, and efficient and accurate identification of internal defects is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA BUILDING TECHNOLOGY DEVELOPMENT CORP
- Filing Date
- 2026-05-03
- Publication Date
- 2026-07-17
AI Technical Summary
When existing infrared detection methods are used to detect internal defects in concrete structures, external heating methods suffer from low sensitivity, uneven heating, and difficulty in penetrating thick structures. There is a lack of non-destructive testing methods with active internal excitation.
By using the pre-reserved cavity inside the concrete structure as the excitation source of hot air pressure, the positive pressure inside the cavity drives the heat medium to migrate outward, and combined with infrared thermal imager scanning surface temperature changes, internal defects can be identified.
It achieves high-penetration detection of internal defects, with clear signals and non-contact operation, high detection efficiency, and the ability to quickly and accurately locate internal defects.
Smart Images
Figure CN122409752A_ABST