|
會議時間：10月24-26
會議地點：蘇州國際博覽中心A1館A106
參會報名：
http://www.chinanosz.com/chinanosz/Apps/expo/index.php?s=/Meeting/meetingspace_3
Randy Fagerquist 1953年出生于美國內布拉斯加州，費利蒙市。
教育背景：
畢業于內布拉斯加大學林肯分校，1980獲得學士，1981獲得碩士，1985年獲得凝聚態物理學博士。
職業生涯：
1984年9月-1992年4月 就職于俄亥俄州，戴頓的伊士曼柯達公司，任資深科學家
成就：CIJ打印機的商業化貢獻
1992年5月-1993年9月 就職于萊克星頓的利盟國際公司，任職科研開發科學家
成就：在液體調色劑電子照相印刷機方面的開發和商業化貢獻
1993年5月-2001年6月 就職于俄亥俄州，戴頓SCITEX數碼印刷有限公司，任資深科學家
成就：CIJ打印頭開發各個階段的科研貢獻
2001年6月-2004年6月 就職于新澤西州，普林斯頓THERICS公司，任職資深工程師
成就：連續噴射和壓電驅動DOD發射設備用于生物醫療設備的3D打印方面的開發研究
2004年6月-現在 就職于俄亥俄州，戴頓伊士曼柯達公司，任首席科學家
成就：柯達超流打印平臺連續噴墨打印技術方面的科研和商業化
Acoustic Wave Generation in a CIJ Ink Cavity Produced by Jet Stimulation and Its Effects on Droplet Behavior.
Stimulation of the array of continuous ink jets produced by the KodakStream droplet generator is accomplished by modulating the temperature of theink as it exits a nozzle. Perturbationof the surface tension and viscosity of the ink cause the cylindrical jet tobecome unstable and, under the proper conditions, results in the jet breakingup into droplets having uniform volume, velocity, and break off times. For the Stream printhead currently underdevelopment, the position and timing of the droplet breakoff is critical forproper operation.
This method of thermal jet stimulation, however,also produces a small modulation of the jet flowrate which, in turn, appears toproduce a small pressure disturbance which can propagate into the common inkcavity feeding the array. When certainspatial patterns of jets are stimulated, these pressure perturbations can actcollectively and disrupt the stimulation process of many of the jets. This can, subsequently, interfere with thedroplet control necessary for acceptable printing. This talk presents experimental evidence for,and a simple theory of, these self-induced pressurewaves, along with an attempt to reduce and/or eliminate them.
|
