title: Relation Between Wire Resistance and Fluid Pressure in the Transient Hot-Wire Method.
abstract: The resistance of metals is a function of applied pressure, and this dependence is large enough to be significant in the calibration of transient hot-wire thermal conductivity instruments. We recommend that for the highest possible accuracy, the instrument's hot wires should be calibrated in situ. If this is not possible, we recommend that a value ofγ, the relative resistance change with pressure, of -2×10-5MPa-1be used to account for the pressure dependence of the platinum wire's resistance.
authors.affiliation: National Institute of Standards and Technology, Boulder, CO 80303.
authors.forename: H M
authors.initials: HM
authors.lastname: Roder
authors.affiliation: National Institute of Standards and Technology, Boulder, CO 80303.
authors.forename: R A
authors.initials: RA
authors.lastname: Perkins
keywords: fluid; platinum; pressure; resistance; thermal conductivity; transient hot-wire