Noninvasive measurement of thermal conductivity and thermal diffusivity of biological materials (preliminary examination of heat transfer models and measurement accuracy)

Satoru Uchida, Keisuke Yoshida, Hiroshi Takamatsu, King Zhang, Motoo Fujii

Research output: Contribution to journalArticle

Abstract

A nonivasive technique was developed to measure the thermal conductivity and the thermal diffusivity of biological materials. This technique involves laser heating and infrared thermometry of target surface. The thermophysical properties are determined by comparing measured temperatures with those calculated analytically using an appropriate model. In this paper, heat transfer models that incorporate heat loss from the surface and laser absorption within the material were discussed. The accuracy of measurement was then examined using simulated experimental data that were generated by adding perturbation to a theoretical temperature response. The thermal conductivity and the thermal diffusivity of biomaterials. which are similar to those of water, are expected to be determined within an error of 1% and 6%. respectively.

Original languageEnglish
Pages (from-to)2774-2779
Number of pages6
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume72
Issue number11
Publication statusPublished - Nov 1 2006

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Thermal diffusivity
thermal diffusivity
Biological materials
diffusivity
Thermal conductivity
thermal conductivity
examination
heat transfer
Heat transfer
Laser heating
laser heating
thermophysical properties
Heat losses
Biomaterials
temperature measurement
Thermodynamic properties
Infrared radiation
perturbation
heat
Temperature

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

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AU - Zhang, King

AU - Fujii, Motoo

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