Electrohydrodynamic Inkjet High Speed Dataset

Abstract

This dataset is a collection of post-processed high-speed videos of ink jet formation in an Electrohydrodynamic Inkjet Printer. Image analysis was used to extract the z-axis profile of an ink column's diameter during jet formation and collapse.

An EHDIJ uses electric signal applied at the printer tip to drive droplet formation and attract ink to the grounded substrate. The electrical and fluid behavior at the tip of an EHDIJ printer is dynamic, transient, and not fully understood. Manufacturing outcomes of EHD printing are closely tied to the interplay of tip, electrical signal, substrate, and ink properties. Understanding these droplet dynamics is key to producing high-resolution and consistent output from the EHD printer. Advances in this technology could enable EHD additive printed patterns with features sizes far smaller (micron and below) than other current additive technologies, possibly enabling novel energy, electronics, optical, and biomedical applications.