title: Detection of Simulated Defect Using IR Temperature Sensors and One Point Heating.
abstract: Infrared temperature sensors, simple device for temperature measurement, have been modified for the measurement of temperature distribution on the metal surface in a way of nondestructive detection of defects of the object. In this study, the IR sensor system is utilized for the defect detection in a cylinder with one point heating, and the performance of the system is examined with an aluminum cylinder having a simulated defect. In addition, a 3-D conduction equation is numerically solved to compare the computed temperature profile with the measured one. The experimental outcome indicates that the defect detection is readily available with the proposed device and the point heating is practical for the applications of the defect detection. It is also found that the measured temperature distribution is comparable to the computed result from the conduction equation.
authors.affiliation: Department of Chemical Engineering, Dong-A University, 840 Hadan-dong, Saha-gu, Pusan, 604-714 Korea. kbc1010@hanmail.net.
authors.forename: Byoung Chul
authors.initials: BC
authors.lastname: Kim
authors.affiliation: Department of Mechanical Engineering, Dong-A University, 840 Hadan-dong, Saha-gu, Pusan, 604-714 Korea. ruldisgil@daum.net.
authors.forename: Young Gun
authors.initials: YG
authors.lastname: Heo
authors.affiliation: Department of Mechanical Engineering, Dong-A University, 840 Hadan-dong, Saha-gu, Pusan, 604-714 Korea. yksuh@dau.ac.kr.
authors.forename: Yong Kweon
authors.initials: YK
authors.lastname: Suh
authors.affiliation: Department of Chemical Engineering, Dong-A University, 840 Hadan-dong, Saha-gu, Pusan, 604-714 Korea. yhkim@mail.donga.ac.kr.
authors.forename: Young Han
authors.initials: YH
authors.lastname: Kim
keywords: Defect Detection; IR thermometer; Nondestructive Detection; Thermography