대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제30권9호
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  • Pages.834-841
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  • 2006
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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LIF 및 CLSM을 결합한 미소 간극 내 유체의 단면 온도 분포 측정 기법

Measurement of Cross-sectional Temperature Distribution in Micro-scale Gap Fluid Using LIF Technique in Combination with CLSM

  • 정동운 (한국과학기술원 기계공학과) ;
  • 이상용 (한국과학기술원 기계공학과)
  • 발행 : 2006.09.01
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초록

In the present wort the Laser-induced Fluorescence (LIF) technique and Confocal Laser Scanning Microscopy (CLSM) have been combined to measure the temperature distribution across a micro-scale liquid layer as a direct and non-invasive method. Only the fluorescent light emitted from a very thin volume around a focal plane can be selectively detected, and it enables us to measure the liquid temperatures even at the close vicinity of the walls. As an experimental verification, a test section consists of two flat plates (for heating and cooling, respectively) separated by about 240 microns was made, and the methanol mixed with a temperature-sensitive dye, Rhodamine B, was filled in the gap between them. The measured temperature distribution across the gap showed good linearity, which is a typical characteristic of conduction heat transfer through a thin liquid layer. In result, the CLSM-LIF technique proposed in the present study was found to be a promising method to measure the local temperatures in the liquid flow field in microfluidic devices.

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참고문헌

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피인용 문헌

  1. Measurement of Fluid Temperature Across Microscale Gap Using Two-Color Ratiometric Laser-Induced Fluorescence Technique in Combination With Confocal Microscopy vol.131, pp.9, 2009, https://doi.org/10.1115/1.2976553