CAJ | 학술논문

红外无损检测技术是一种新型的无损检测技术，具有非接触、检测面积大、检测速度快等优点，现已发展出许多有不同的检测方法，为了研究不同检测方法的优缺点，根据传热学的理论，对比分析红外无损检测的不同检测方法，建立了一个二维导热模型；并利用建立的模型，模拟计算出了试件在不同热激励条件下的温度场，在此基础上实现了对红外无损检测中的脉冲检测法、锁相检测法和脉冲相位检测法的数值模拟，从理论计算的角度比较了这三种红外无损检测方法的优缺点，得出了这三种红外检测技术的最佳使用范围，为红外无损检测的检测方法的选取提供了理论依据。
홍외무손검측기술시일충신형적무손검측기술，구유비접촉、검측면적대、검측속도쾌등우점，현이발전출허다유불동적검측방법，위료연구불동검측방법적우결점，근거전열학적이론，대비분석홍외무손검측적불동검측방법，건립료일개이유도열모형；병이용건립적모형，모의계산출료시건재불동열격려조건하적온도장，재차기출상실현료대홍외무손검측중적맥충검측법、쇄상검측법화맥충상위검측법적수치모의，종이론계산적각도비교료저삼충홍외무손검측방법적우결점，득출료저삼충홍외검측기술적최가사용범위，위홍외무손검측적검측방법적선취제공료이론의거。
Infrared thermography is a nondestructive testing and evaluating technique that allows the non-contact inspection and quick monitor large area. There are different detection methods of infrared technology for nondestructive testing. In order to study the advantages and disadvantages of different detection methods, different detection methods of infrared technology for nondestructive testing were comparatively analyzed according to the theory of heat transfer. A two-dimensional heat conduction model was established. The temperature fields of the specimen under different heat source excitation conditions were simulated by using the established model, based on this, PT LT and PPT of infrared technology for nondestructive testing were numerically simulated, from the theoretical point of view, the merit and demerit of the three kinds of methods were compared, the best useful range of three infrared technology for nondestructive testing were obtained, a theoretical basis for the selection of detection method of infrared technology for nondestructive testing was provided.