Development of micro optical viscosity sensor with focus control system for in-process monitoring

Y. Taguchi, R. Nagamachi, H. Abe, Y. Nagasaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We have developed a novel micro optical viscosity sensor (MOVS) based on a laser-induced capillary wave with focus control system enabling non-contact, short-time (several hundreds of nano seconds), small sample volume (several tens of micro litters), and high-stability in situ / in vivo measurement. The microfabricated MOVS chip consists of two deep trenches holding photonic crystal fibers for laser excitation, and three shallow trenches holding the lensed-fibers for probing / detecting and focus controlling. The optical interference fringe excited by two pulsed laser beams heats the sample surface, and the temporal behavior of surface geometry is detected as a first-order diffracted beam, which contains the information of liquid properties (viscosity and surface tension). In order to verify the applicability of MOVS chip for the in-process monitoring of viscosity, the preliminary measurement using acetone are demonstrated.

Original languageEnglish
Title of host publication2009 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, OPTMEMS 2009
Pages29-30
Number of pages2
DOIs
Publication statusPublished - 2009 Dec 16
Event2009 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, OPTMEMS 2009 - Clearwater, FL, United States
Duration: 2009 Aug 172009 Aug 20

Publication series

Name2009 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, OPTMEMS 2009

Other

Other2009 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, OPTMEMS 2009
CountryUnited States
CityClearwater, FL
Period09/8/1709/8/20

Keywords

  • Laser-induced capillary wave
  • Measurement technique
  • Optical interference
  • Surface tension
  • Viscosity

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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