@article{Jin2025,
abstract = {The charge and surface potential of liquid droplets falling from a nozzle were measured in order to clarify the charging and discharging properties of droplets formed under an applied voltage during automotive spray painting. The charge per droplet was found to initially increase with increasing voltage regardless of the test liquid used but then began to decrease due to a reduction in droplet size, the generation of satellite droplets, and electrical discharging. The ‘electrical surface tension' was also determined and was found to be nondimensionally correlated with the surface charge density. The surface potential for moving droplets, stationary metallic disks, and spheres was measured using an electrostatic sensor, whose principles were applied in an attempt to correct the displayed values based on the size of the droplets. A regression analysis was also used to correct the displayed surface potentials. It was found that accurate measurement of the surface potential may be possible even for small particles.},
author = {Jin, Rito and Kurihara, Yuta and Daikoku, Masatoshi and Shirota, Minori and Miyagawa, Taimei and Okabe, Takahiro and Matsukawa, Yoshiya and Aoki, Hideyuki and Saito, Yasuhiro and Fukuno, Junichi},
doi = {https://doi.org/10.34343/ijpest.2025.19.e02012},
journal = {International Journal of Plasma Environmental Science and Technology},
keywords = {Charge,liquid droplets,spray painting,surface potential},
number = {2},
pages = {e02012},
title = {{A study on the measurement of charge and surface potential of charged liquid droplets in spray painting}},
url = {http://ijpest.com/Contents/19/2/e02012.html},
volume = {19},
year = {2025}
}