Development of a quantitative evaluation system for static electricity induced luminescence using image proccesing

Static Electricity induced Luminescence (SEL) material ($\mathrm{SrAl}_{2} \mathrm{O}_{4}: \mathrm{Eu}^{2+}$) was recently discovered, which emits luminescence due to external energy from static electric. Static electric that could not be visualized can now be recognized through luminescence and SEL is expected to be a new image-based static electricity sensing technology. In this study, we developed a system to quantitatively evaluate SEL material using image analysis. The experimental results confirm correlation between the applied voltage and the maximum intensity of the SEL.