ISSN Online: 2377-424X
ISBN Print: 0-89116-299-2
International Heat Transfer Conference 7
A TECHNIQUE FOR MEASURING ENERGY ABSORPTION FROM HIGH ENERGY LASER RADIATION
Abstrakt
This paper presents the results of an investigation into a simple technique developed primarily for evaluating surface coating effectiveness for the absorption on a non-uniform laser radiation heat flux.
Results of an analysis suggest that if the transducer sensor is designed appropriately, and the experimental data analyzed in a particular manner, the temperature-time history of the transducer need be measured at only a single arbitrary location. These conclusions are also supported by experimental measurements for laser radiation absorption at a wavelength of 10.6 µm for polished copper, polished steel, and for a manganese-phosphate coating on a steel substrate. The absorptances measured for the polished copper and steel agree well with other experimental data in the literature.
Results of an analysis suggest that if the transducer sensor is designed appropriately, and the experimental data analyzed in a particular manner, the temperature-time history of the transducer need be measured at only a single arbitrary location. These conclusions are also supported by experimental measurements for laser radiation absorption at a wavelength of 10.6 µm for polished copper, polished steel, and for a manganese-phosphate coating on a steel substrate. The absorptances measured for the polished copper and steel agree well with other experimental data in the literature.