两种吸收系数测量装置的变温-恒压理论
Barothermal Theory of Two Devices for Measuring Absorption Coefficients.
作者信息
Bennett H S
机构信息
Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234.
出版信息
J Res Natl Bur Stand A Phys Chem. 1975 Sep-Oct;79A(5):641-650. doi: 10.6028/jres.079A.025.
Two devices are proposed for measuring absorption coefficients in weakly absorbing materials. The first device measures cylindrical samples and the second device measures flat plate or disk samples. This paper reports on the derivations for the steady-state and transient solutions to the heat diffusion equations which describe the barothermal behavior of the two proposed devices. In addition, Green's function techniques are used to describe the cyclic heating and cooling of the cylinders and plates.
提出了两种用于测量弱吸收材料吸收系数的装置。第一种装置测量圆柱形样品，第二种装置测量平板或圆盘样品。本文报道了描述这两种提议装置的热压行为的热扩散方程的稳态和瞬态解的推导。此外，格林函数技术用于描述圆柱体和平板的循环加热和冷却。
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