Optical tweezers-assisted cross-correlation analysis for a non-intrusive fluid temperature measurement in microdomains

Chih Ming Cheng, Ming Chih Chang, Yu Fen Chang, Wei Ting Wang, Chien Ting Hsu, Jing Shin Tsai, Chia Yeh Liu, Chien Ming Wu, Keng Liang Ou, Tzu Sen Yang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

An image-based approach to predict the fluid temperature in microfluidic flow cell is presented. We apply Fourier-based cross-correlation processing to determine the lateral displacement of the optically trapped bead; therefore, both the mean square displacement (MSD) and the diffusion coefficient (D) can be obtained. On the other hand, applying the Stokes-Einstein equation, together with Faxen's law correction, the theoretical relation showed that D is proportional to (T=η), where T and η are temperature and temperature-dependent fluid viscosity, respectively. Hence, the fluid temperature can be determined by MSD-based thermometry.

Original languageEnglish
Article number067002
JournalJapanese Journal of Applied Physics
Volume51
Issue number6 PART 1
DOIs
Publication statusPublished - Jun 2012

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Optical tweezers
Temperature measurement
cross correlation
temperature measurement
Fluids
fluids
Temperature
temperature
Einstein equations
Microfluidics
beads
diffusion coefficient
Viscosity
viscosity
Processing
cells

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Optical tweezers-assisted cross-correlation analysis for a non-intrusive fluid temperature measurement in microdomains. / Cheng, Chih Ming; Chang, Ming Chih; Chang, Yu Fen; Wang, Wei Ting; Hsu, Chien Ting; Tsai, Jing Shin; Liu, Chia Yeh; Wu, Chien Ming; Ou, Keng Liang; Yang, Tzu Sen.

In: Japanese Journal of Applied Physics, Vol. 51, No. 6 PART 1, 067002, 06.2012.

Research output: Contribution to journalArticle

Cheng, Chih Ming ; Chang, Ming Chih ; Chang, Yu Fen ; Wang, Wei Ting ; Hsu, Chien Ting ; Tsai, Jing Shin ; Liu, Chia Yeh ; Wu, Chien Ming ; Ou, Keng Liang ; Yang, Tzu Sen. / Optical tweezers-assisted cross-correlation analysis for a non-intrusive fluid temperature measurement in microdomains. In: Japanese Journal of Applied Physics. 2012 ; Vol. 51, No. 6 PART 1.
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AU - Hsu, Chien Ting

AU - Tsai, Jing Shin

AU - Liu, Chia Yeh

AU - Wu, Chien Ming

AU - Ou, Keng Liang

AU - Yang, Tzu Sen

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