We report a novel scheme for steering a high-velocity continuous droplet stream using the dielectrophoretic force. The droplet stream is created using the continuous ink jet method. A liquid jet is ejected from a nozzle at high pressure and is controllably broken up into uniform droplets 30–90 μm in diameter with velocities up to 20 m/s. Voltages up to 2 kV are used to energize a high-voltage probe located downstream from the nozzle to induce the formation of a nonuniform electric field in the vicinity of the probe tip. The stream is passed through the electric field, subjecting the droplets to the dielectrophoretic force in the direction of the electric field maxima. Our scheme provides precise displacement of the droplet stream and requires less hardware than traditional steering methods. Less hardware means the distance between the printing nozzle and receiving substrate is minimized, enabling more accurate droplet positioning and higher print resolution. Other applications of high-voltage dielectrophoresis for droplet steering includes on/off control and manipulation (or removal) of satellite droplets. A simple linear relationship predicts the deflection of the droplet stream in the vicinity of a high-voltage probe as a function of the governing parameters. This relationship holds true for a large range of droplet sizes, stream velocities, geometries, and electric field strengths.
Experiments in Fluids – Springer Journals
Published: Jul 13, 2013
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera