ANALYTICAL OPTOACOUSTIC SPECTROMETRY .3. OPTOACOUSTIC EFFECT AND THERMAL-DIFFUSIVITY
ANALYTICAL OPTOACOUSTIC SPECTROMETRY .3. OPTOACOUSTIC EFFECT AND THERMAL-DIFFUSIVITY
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DOI：
10.1039/an9770200281
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发表时间：
1977-01-01
期刊：
影响因子：
4.2
通讯作者：
KIRKBRIGHT, GF
中科院分区：
文献类型：
--
作者：
ADAMS, MJ;KIRKBRIGHT, GF
光声光谱法可用于获得有关小固体样品的光谱吸收特性和热扩散率的数据。理论表达式已被开发到相关的光声光谱法中观察到的信号的振幅和相位时，使用色散和非色散技术的这种样品的光学和热性能。这些表达式的有效性已被检查通过使用透明和不透明的材料具有广泛不同的热扩散率。
Optoacoustic spectrometry can be employed to obtain data concerning the spectral absorption characteristics and thermal diffusivity of small solid samples. Theoretical expressions have been developed to relate the optical and thermal properties of such samples to the amplitude and phase of the signals observed in optoacoustic spectrometry when using dispersive and non-dispersive techniques. The validity of these expressions has been examined by using transparent and opaque materials with widely differing thermal diffusivities.