Simultaneous measurement of temperature, thermal diffusivity, thermal conductivity and spectral emissivity by photothermal radiometry

被引：3

作者：

Broussely, M ^{[1
]}

Levick, A ^{[1
]}

Edwards, G ^{[1
]}

机构：

[1] Natl Phys Lab, Teddington TW11 0LW, Middx, England

来源：

JOURNAL DE PHYSIQUE IV | 2005年 / 125卷

关键词：

D O I：

10.1051/jp4:2005125143

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Laser Absorption Radiation Thermometer (LART) technique has been developed at the National Physical Laboratory (NPL) to measure temperature independently of target emissivity, surrounding background radiation or gaseous absorption. The technique is based on photothermal radiometry and utilises fibre optics in the latest instrument. Thermal properties can in principle be deduced from measurements of modulated (ac) and steady (dc) thermal radiations, in particular thermal diffusivity, thermal conductivity and spectral emissivity. The paper presents progress so far on "Multi LART" and initial measurements made of oxidised Inconel and platinum targets. The Multi LART instrument has great potential for meeting industrial needs for temperature and thermal properties measurements in challenging environments.

引用

页码：627 / 630

页数：4