Application of lock-in data processing for thermographic NDT of concrete structures

Proceedings of SPIE-The International Society for Optical Engineering

Volumn 4710, Issue , 2002, Pages 552-557

  Sakagami, Takahide ^a   Kubo, Shiro ^a   Nakamura, Shiro ^b   Kawashima, Yasushi ^c   Komiyama, Tatsuhito ^d  

^a OSAKA UNIVERSITY   (Japan)

^b SUMITOMO OSAKA CEMENT CO LTD   (Japan)

^c Chuken Consultant Co Ltd   (Japan)

^d NONE   (Japan)

Author keywords

Concrete Structure; Delamination Defect; Lock in Thermography; Phase Delay; Thermal Insulation

Indexed keywords

CONCRETE CONSTRUCTION; DATA PROCESSING; DEFECTS; DELAMINATION; INFRARED RADIATION; NONDESTRUCTIVE EXAMINATION; QUARTZ;

PHASE DELAY;

THERMOGRAPHY (TEMPERATURE MEASUREMENT);

EID: 0036029592     PISSN: 0277786X     EISSN: None     Source Type: Journal    
DOI: 10.1117/12.459606     Document Type: Article

References (3)

1. Sakagami, T. and Komiyama, T.: Thermographic nondestructive testing for concrete structures, Journal of JSNDI, 47-10, pp.723-727, 1998 (in Japanese).
2. Sakagami, T. and Kubo, S.: Development of a new crack identification method based on singular current field using differential thermography, SPIE Proceedings Series Vol.3700, pp.369-376, 1999.
3. Sakagami, T., Kubo, S. and Teshima, Y.: Fatigue crack identification using near-tip singular temperature field measured by lock-in thermography, SPIE Proceedings Series Vol.4020, pp.174-181, 2000.