A Periodic Technique for Measuring Thermal Properties of Thin Samples
type: CreativeWork
description: We present a periodic technique for measuring the thermal conductivity and diffusivity of thin samples simultaneously. In samples of this type, temperature measurements must be made across the sample faces and are therefore subject to large error due to the interface resistance between the temperature sensor and the sample. The technique uses measurements of the amplitude and phase of the periodic temperature across both a reference sample and the unknown material at several different frequencies. Modeling of the heat flow in the sample allows the simultaneous determination of the thermal parameters of the sample as well as the interface resistance. Data will be presented for standard materials to show the viability of the technique.
abstract: We present a periodic technique for measuring the thermal conductivity and diffusivity of thin samples simultaneously. In samples of this type, temperature measurements must be made across the sample faces and are therefore subject to large error due to the interface resistance between the temperature sensor and the sample. The technique uses measurements of the amplitude and phase of the periodic temperature across both a reference sample and the unknown material at several different frequencies. Modeling of the heat flow in the sample allows the simultaneous determination of the thermal parameters of the sample as well as the interface resistance. Data will be presented for standard materials to show the viability of the technique.
author: May, Garrett
keywords: Periodic Technique, Thermal Conductivity, Thermal Diffusivity, Thermal Surface Contact Resistance
date published: 2007-12-15T08:00:00Z
date modified: 2026-07-24T05:28:43Z
provider: University of New Orleans
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of New Orleans