2011 Fiscal Year Final Research Report

Development of a Noninvasive Measurement of Thermal Transport Properties of Biological and Soft Materials.

Research Project

Project/Area Number	21560219
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Thermal engineering
Research Institution	Kyushu University
Principal Investigator	UCHIDA Satoru 九州大学, 大学院・工学研究院, 助教 (80038041)
Project Period (FY)	2009 – 2011
Keywords	熱物性 / 生体試料 / ソフトマテリアル / 非接触測定 / 赤外線カメラ / レーザ加熱
Research Abstract	A noninvasive technique was developed to measure the thermal conductivity and the thermal diffusivity of biological and soft materials. This technique involves laser heating and infrared thermometry of target surface. The thermal transport properties are determined by comparing measured temperatures with those calculated analytically using an appropriate model. But the temperature profile of the calculation was different from the experimental result of agar gel. To identify the cause of the difference, the radiative influence from inside of the gel, evaporation of the surface and others were examined. As the result, it was proved that the temperature difference was almost caused by the spreading of light between the photodetectors of our infrared thermometer.