论文部分内容阅读
高温温标建立的理论基础是光测高温学。该理论用普朗克公式将热学量的温度与辐射量的光谱辐射亮度联系起来。普朗克公式为:E_(bλ)(T)=C_1λ~(-5)(e~(C_2/(λT)-1))~(-1) (1)式中:E_(bλ)(T)-绝对黑体在热力学温度T及波长为λ时的单色辐射亮度。 C_1、C_2-分别为第一、第二辐射常数,C_2=0.014388m.K. 从式(1)可知,若测定出E_(bλ)(T),则黑体的热力学温度T即可确定。但E_(bλ)(T)的绝对测量是较困难的,而且不易准确。为此,
The theoretical basis for the establishment of high temperature temperature scale is photometry of high temperature. The theory uses the Planck’s formula to relate the temperature of the heat quantity to the spectral radiance of the radiation. Planck’s formula is: E_ (bλ) (T) = C_1λ ~ (-5) (e ~ (C_2 / (λT) -1)) -1 where E_ (bλ) (T ) - Monochrome radiant intensity of an absolute black body at thermodynamic temperature T and wavelength λ. C_1 and C_2- are the first and second radiation constants, respectively, C_2 = 0.014388m.K. From equation (1), if E_ (bλ) (T) is measured, the thermodynamic temperature T of the blackbody can be determined. However, the absolute measurement of E_ (bλ) (T) is more difficult and less accurate. to this end,