Techniques for accurate resistance measurement in the transient short-hot-wire method applied to high thermal-diffusivity gas

P. L. Woodfield, S. Moroe, J. Fukai, M. Fujii, K. Shinzato, M. Kohno, Y. Takata

研究成果: ジャーナルへの寄稿学術誌査読

14 被引用数 (Scopus)

抄録

The accuracy of high-speed transient resistance measurements is an important issue particularly for measuring the thermal conductivity of high thermal-diffusivity (low-density) gases. This is because the hot-wire temperature rise against the logarithm of time is non-linear and can approach a steady state within the typical measurement time of 1 s. Two types of voltmeters are compared for use in the transient short-hot-wire method. Details of suitable procedures for taking accurate transient resistance measurements with either a two-channel high-speed analog/digital converter or a pair of integrating digital multimeters are presented.

本文言語英語
ページ(範囲)1748-1772
ページ数25
ジャーナルInternational Journal of Thermophysics
30
6
DOI
出版ステータス出版済み - 12月 2009

!!!All Science Journal Classification (ASJC) codes

  • 凝縮系物理学

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