Journal
MATERIALS
Volume 12, Issue 20, Pages -Publisher
MDPI
DOI: 10.3390/ma12203322
Keywords
image processing; temperature measurement; radiant heat; non-contact
Categories
Funding
- National Natural Science Foundation of China [51374069]
- Natural Science Foundation of Liaoning Province [20180550516]
- Science Research Foundation of Liaoning Education Department [L2019005]
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Temperature distribution is an important process parameter of steel plates during electromagnetic induction heating treatment. This study uses the digital image correlation method to develop an effective non-contact temperature measurement that allows obtaining valuable information about the temperature value of a high temperature steel plate specimen and analyzing its temperature distribution. A principle of thermal radiation temperature measurement based on the color chagre couled device (CCD) technology was introduced. The image processing system encapsulates the image update module, form mode module, image event module and temperature analysis module. The error analysis and temperature calibration were carried out to make sure the error deviation of the measurement system was within a small range. The temperature distribution of B1500HS at high temperature was analyzed by the designed measurement system which was in good agreement with the result from Raynger 3i Plus temperature gun, indicating that the measurement system based on image processing basically meets the requirements of temperature distribution measurement of a high temperature steel plate, and provides an important reference for a high temperature steel plate in non-contact temperature distribution measurement.
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