Recent Advancement and Development on Infrared thermography Technique

적외선 열화상 기술의 최신 연구 동향과 발전 현황

  • 김효종 (한국철도기술연구원, 주행추진연구실) ;
  • 김정국 (한국철도기술연구원, 주행추진연구실) ;
  • 김남포 (한국철도기술연구원, 주행추진연구실)
  • Published : 2011.05.26


All objects emit infrared above absolute temperature 0K. Infrared thermography is one of the nondestructive testing technologies to measure the temperature of the object. Infrared thermography shows infrared image which in a longer wavelength than visible light. Infrared technology can be employed regardless of the type or state of the objects. Thus, infrared thermography technique has been used in a wide variety of manufacturing processes in areas such as mechanical, electrical, chemical and medical applications. The advancement of using infrared technology has been increasing. In this paper, the principle of lock-in infrared thermography and its applications were investigated, and the direction of future development was discussed.