Measurement and application of an infrared image restoration filter to improve the accuracy of surface temperature measurements of cubes

被引：10

作者：

Meinders, ER ^{[1
]}

van Kempen, GMP ^{[1
]}

van Vliet, LJ ^{[1
]}

van der Meer, TH ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Appl Phys, NL-2600 GA Delft, Netherlands

来源：

EXPERIMENTS IN FLUIDS | 1999年 / 26卷 / 1-2期

关键词：

D O I：

10.1007/s003480050267

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents the experimental investigation of the application of an image restoration technique aimed at improving the accuracy of infrared surface temperature measurements of cubes placed in a vertical channel flow. These cubes, used to determine distributions of the local heal transfer coefficient, show large spatial temperature gradients. The image restoration technique, developed to correct the spatial image degradation, is based on the two-dimensional Optical Transfer Function constructed from line spread functions (LSF). The benefit of the application of the infrared image restoration technique is verified with temperature measurements acquired from a second independent technique.

引用

页码：86 / 96

页数：11

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