Dynamic stressing measurement of viscous liquids using microfluidic chips

Z. G. Li, C. D. Oh, K. Ando, J. B. Zhang, A. Q. Liu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

This paper demonstrates the dynamic stressing of viscous liquids in microfluidic channels. An infrared laser pulse is focused within the testing liquid in a microfluidic channel and a spherical shock wave near an air-liquid interface is created. The shock is reflected as a tension wave by the free surface due to the acoustic impedance mismatch. The displacement of the free surface within hundred nanoseconds is captured by a developed double-exposure optical system. The tensile strength can be estimated by extrapolating a series of shock pressure approximation at several different distances between the bubble and the free surface to the measurement accuracy. This study has a great potential in the optical breakdown of biomaterials.

Original languageEnglish
Title of host publicationIEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013
Pages1137-1140
Number of pages4
DOIs
Publication statusPublished - Jan 2013
Externally publishedYes
EventIEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013 - Taipei, Taiwan
Duration: 20 Jan 201324 Jan 2013

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999

Conference

ConferenceIEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013
Country/TerritoryTaiwan
CityTaipei
Period20/01/1324/01/13

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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