냉각법 및 영상 처리기법을 이용한 서브마이크론 정전분무 액적의 크기분포 측정Measurement of Size Distributions of Submicron Electrosprays Using a Freezing Method and an Image Processing Technique

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The size distributions of electrospray droplets from the Taylor cone in cone-jet mode are directly measured by using a freezing method and a transmission electron microscope (TEM) image processing technique. These results are compared with the data obtained by an aerodynamic size spectrometer (TSI Aerosizer DSP). The use of glycerol seeded with NaI and a freezing method make it possible to sample droplets with their original sizes preserved. Since pictures of droplets are taken with TEM with very low vapor pressure of the solution, evaporation is suppressed by freezing. For liquid flow rates below 1 nl/sec, the measured droplet diameters by the TEM image processing technique and the aerosizer are in the range of 0.25 to 0.32 m add 0.3B to 0.40m, respectively. Comparing the TEM data with the aerosizer measurements, it has been revealed that the TEM image processing technique can afford more accurate values of droplet size distributions in the submicron range of 0.1 to 0.4m.
Publisher
대한기계학회
Issue Date
2001-10
Language
Korean
Citation

대한기계학회논문집 B, v.25, no.10, pp.1400 - 1407

ISSN
1226-4881
URI
http://hdl.handle.net/10203/15271
Appears in Collection
ME-Journal Papers(저널논문)
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