Improvements on full-profile fitting pendent drop method used for surface tension measurement

DOI

10.2991/icmemtc-16.2016.175How to use a DOI?

Keywords

surface tension; full-profile fitting method; pendent drop.

Abstract

Surface tension is an important parameter of liquid surface properties. In order to improve the accuracy and stability of the parameter measurement, full-profile fitting pendent drop method is utilized in this article, and algorithm to determine the initial value in two-dimensional optimization is improved. Moreover, the error function is modified via a weighting factor, which reduces the influence of droplet profile deviation point to the surface tension measurement. At 25 and a standard atmospheric pressure, the improved full-profile fitting method is used to calculate the surface tension of water and ethanol. The final results show that the stability and repeatability of the improved full-profile fitting pendent drop method is much better than the previous method, which effectively verifies the feasibility and superiority of the improved method.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Siwei Li
AU  - Jinglong Li
PY  - 2016/04
DA  - 2016/04
TI  - Improvements on full-profile fitting pendent drop method used for surface tension measurement
BT  - Proceedings of the 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control
PB  - Atlantis Press
SP  - 893
EP  - 898
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmemtc-16.2016.175
DO  - 10.2991/icmemtc-16.2016.175
ID  - Li2016/04
ER  -