Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : June 05, 2019 - June 08, 2019
In the previous study, the collateral damage area was evaluated for the electrically induced bubble injector (needle-free injector) which was invented in our laboratory. It was confirmed that the input power is closely related to the depth of the injection area. However, the device has an important subject which is that a generation mechanism of the electrically-induced bubbles is not clarified. In this study, we tried making electric resistance model of the bubble injector, and made an equivalent circuit with dielectric sheet which was bored a small hole. We measured the voltage at which bubbles are generated, and analyzed the electric field at each measured voltage by FEM analysis. Finally, we summarized a relationship between the electric field and bubble generation, and considered the bubble generation mechanism.
