EMISSIVITY MEASUREMENT FOR OUTDOOR STRUCTURES.

被引：0
|
作者：
Surin, V.G.
机构：
来源：
Measurement Techniques | 1987年 / 30卷 / 02期
关键词：
COATED PLATES - HEAT LOSSES - TEMPERATURE GRADIENT - THERMAL CONTACT;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Low-emissivity coatings are used to control thermal conditions in structures and reduce heat losses; the emissivity alters during use because of environmental factors, so periodic measurements are required directly on the coating. Existing methods of determining the emissivity epsilon are designed mainly for laboratory conditions. A radiometric method was proposed for measuring emissivity from the functional relationship between the brightness of the emission from a source and the temperature. We have tested this method under field conditions.
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页码：148 / 150
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