A miniaturized transient hot-wire device for measuring thermal conductivity of non-conductive fluids

Ashkan Vatani, Peter Lloyd Woodfield, Dzung Viet Dao

Research output: Contribution to journalArticleResearchpeer-review

14 Citations (Scopus)

Abstract

This paper presents the design, fabrication and characterization of a novel transient hot-wire device for measurement of thermal conductivity of non-conductive fluids. The key features of the cell are small sample amount, simple fabrication, accurate measurement and transparency, which allows the study of both thermal and optical properties of the fluids. A 20 μm-diameter platinum hot wire is symmetrically suspended along the central axis of the capsulated cell to avoid the effect from the walls. A four-point resistance measurement method was used to measure the transient resistance with high accuracy. The accuracy of the thermal conductivity measurement was validated with reference values and very good agreement was achieved.

Original languageEnglish
Pages (from-to)2463-2466
Number of pages4
JournalMicrosystem Technologies
Volume22
Issue number10
DOIs
Publication statusPublished - 1 Oct 2016
Externally publishedYes

Cite this