建立一台可测定生物体体表热导系数的试验装置。首先试验测定标准试样—新鲜甘油(AR级)及熔融石 英玻璃(99.9% SiO2)，其结果与TPRC推荐值偏差 0.7%；其次用试验方法证实本文所利用的Takegoshi理论模型的适用性； 最后，根据生物活体会产生代谢热并维持恒定体温的特点，指出应用本装置去测定生物活体体表热导系数时必须满足的若干前提条件
An experimental apparatus for measuring the effective thermal conductivity ofthe body surface has been built. The following tests have been completed todemonstrate the apparatus validity. Firstly, as the standard specimen,glycerine (AR) and fused quartz glass (99.9% SiO2) were respectivelymeasured, and the relative errors compared with TPRC recommended date are lessthan 0.7%. Secondly, as a base of the apparatus, the validity of Takegoshitheory model was confirmed using the experimental method for inorganicspecimens. Lastly, for the biological bodies characterized by metabolic heatgeneration and unchanged body temperature, some prerequisites for theapplication of the technique to measuring their thermal conductivity werediscussed
参考文献
| [1] | M M;Holmce K R;Pupinskae V .Pulse-Decay Methodfor Measuring the Thermal Conductivity Tissues[J].Transactions of the ASME Journal of Biomechanical Engineering,1981,103:253-260. |
| [2] | J W;Allen J L;Bowman H F .The Simultaneous Measurement ofThermal Conductivity Thermal Diffusivity and Perfusion in Small Volumes ofTissue[J].Transactions of the ASME Journal of Biomechanical Engineering,1984,106:192-197. |
| [3] | S X;Jiang Y F;Liang X G .A Tiny Heat Probe for Measuringthe Thermal Conductivities of Non-rigid Materials[J].Measurement Science and Technology,1994,5:1339-1344. |
| [4] | E.A Meathod for Measuving Thermal Conductivityof Solid Using the Transient `Hot-Wire'[M].Trans. Japan. Soc. Mech. Eng,1981:1307-16. |
| [5] | H S;Jeager J C.Conduction of Heat in Solids.2nd Edi[J].Oxford,1986 |
| [6] | Y S.Thermal Conductivity of Nonmetallic Solids.Thermophysical Properties of Matter[M].Eds Y S Touloukian and C Y Ho,New York: IFI/Pleun),1972 |
| [7] | 陈则韶;葛新石;顾毓沁.量热技术和热物性测定[M].合肥:中国科学技术大学出版社,1990 |
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