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Detection of Simulated Defect Using IR Temperature Sensors and One Point Heating

View Article: PubMed Central

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.

No MeSH data available.


A schematic diagram of sensor holder and dimensions of sensor(a), left-line hole(b) and right-line hole(c).
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f4-sensors-08-03345: A schematic diagram of sensor holder and dimensions of sensor(a), left-line hole(b) and right-line hole(c).

Mentions: In order to measure temperature distribution of the aluminum cylinder, five infrared thermometers (Heimann Sensor GmbH, Germany, Model 3129)—built in a specially designed module as described in Figure 4—were utilized in this experiment. Though the sensor has a circular optical window of 3 mm in diameter, it has 9 mm tin casing as illustrated in Figure 4a.


Detection of Simulated Defect Using IR Temperature Sensors and One Point Heating
A schematic diagram of sensor holder and dimensions of sensor(a), left-line hole(b) and right-line hole(c).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3675548&req=5

f4-sensors-08-03345: A schematic diagram of sensor holder and dimensions of sensor(a), left-line hole(b) and right-line hole(c).
Mentions: In order to measure temperature distribution of the aluminum cylinder, five infrared thermometers (Heimann Sensor GmbH, Germany, Model 3129)—built in a specially designed module as described in Figure 4—were utilized in this experiment. Though the sensor has a circular optical window of 3 mm in diameter, it has 9 mm tin casing as illustrated in Figure 4a.

View Article: PubMed Central

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.

No MeSH data available.