On the corona discharge spreading of dielectric liquid films

2013 ◽  
Vol 71 (3) ◽  
pp. 496-498 ◽  
Author(s):  
S.R. Mahmoudi ◽  
K. Adamiak ◽  
G.S.P. Castle
Keyword(s):  
Corona Discharge ◽  
Liquid Films ◽  
Dielectric Liquid

scholarly journals Tunable-Focus Liquid Lens through Charge Injection

Micromachines ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 109 ◽  
Author(s):  
Shizhi Qian ◽  
Wenxiang Shi ◽  
Huai Zheng ◽  
Zhaohui Liu
Keyword(s):  
Corona Discharge ◽  
Charge Injection ◽  
Dielectric Liquid ◽  
Liquid Lenses ◽  
Liquid Lens ◽  
3D Printed ◽  
Tube Structure

Liquid lenses are the simplest and cheapest optical lenses, and various studies have been conducted to develop tunable-focus liquid lenses. In this study, a simple and easily implemented method for achieving tunable-focus liquid lenses was proposed and experimentally validated. In this method, charges induced by a corona discharge in the air were injected into dielectric liquid, resulting in “electropressure” at the interface between the air and the liquid. Through a 3D-printed U-tube structure, a tunable-focus liquid lens was fabricated and tested. Depending on the voltage, the focus of the liquid lens can be adjusted in large ranges (−∞ to −9 mm and 13.11 mm to ∞). The results will inspire various new liquid-lens applications.

Dielectric behaviour in non-pure dielectric liquid films

1980 ◽  
Vol 13 (1) ◽  
pp. 107-115 ◽  
Author(s):  
H Shimokawa ◽  
A Ohashi ◽  
M Ueda
Keyword(s):  
Liquid Films ◽  
Dielectric Liquid ◽  
Dielectric Behaviour

Electrical conduction in dielectric liquid films in 10−4-10−1 (second) time range

1981 ◽  
Vol 101 (1) ◽  
pp. 28-34 ◽  
Author(s):  
Hirofumi Shimokawa ◽  
Asao Ohashi ◽  
Minoru Ueda
Keyword(s):  
Electrical Conduction ◽  
Liquid Films ◽  
Dielectric Liquid ◽  
Time Range

scholarly journals Generation and Transport of Dielectric Droplets along Microchannels by Corona Discharge

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 181
Author(s):  
Qiang Tang ◽  
Shangru Zhou ◽  
Ruiheng Hu ◽  
Huai Zheng ◽  
Junheng Pan ◽  
...  
Keyword(s):  
Corona Discharge ◽  
Simple Approach ◽  
Dielectric Liquid ◽  
Dielectric Fluid ◽  
Spreading Speeds

In this paper, a phenomenon of generation and transport of droplets is proposed, which is based on the dielectric liquid electroconvection induced by corona discharge. We placed the dielectric fluid on a conductive/nonconductive substrate, and then it broke apart to become many small droplets that move along the conductive microchannel. The behaviors of dielectric droplets were experimentally observed on different conductive microchannels in details. Spreading speeds and sizes of dielectric droplets were analyzed at different driving voltages and conductive microchannels. This work highlights a simple approach to produce and manipulate dielectric droplets along microchannels.

Voltage dependence of tan δ of dielectric liquid films

1981 ◽  
Vol 101 (1) ◽  
pp. 14-20
Author(s):  
Hirofumi Shimokawa ◽  
Asao Ohashi ◽  
Minoru Ueda
Keyword(s):  
Voltage Dependence ◽  
Liquid Films ◽  
Dielectric Liquid ◽  
Tan Δ
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