Surface thermography using dual channel imaging based on the blue and red emission of Ba₃MgSi₂O₈:Eu²⁺, Mn²⁺

In this investigation, we present a surface temperature determination method based on the luminescence characteristics of Ba₃MgSi₂O₈:Eu²⁺, Mn²⁺. Simple optics utilizing only one RGB scientific CMOS camera makes this measurement technique easily applicable. Four different imaging methods were developed and are presented together with the corresponding calibration curves. We successfully utilized the methods to take a surface temperature distribution image on glass plates with a point heat source between them. (paper)