Research on application of polynomial fitting technique in rotary kiln infrared temperature measurement system

被引：16
|
作者：
Guo, Zhongyuan [1 ]
Dai, Shaosheng [1 ]
Liu, Jinsong [1 ]
You, Changhui [1 ]
Cheng, Yajun [1 ]
Yu, Liangbing [1 ]
机构：
[1] Chongqing Univ Posts & Telecommun, Chongqing Key Lab Signal & Informat Proc, 2 Chongwen Rd, Chongqing 400065, Peoples R China
来源：
INFRARED PHYSICS & TECHNOLOGY | 2016年 / 79卷
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
Rotary kiln; Temperature compensation; Polynomial fitting; Measurement accuracy; DISTANCE; ACCURACY;
D O I：
10.1016/j.infrared.2016.10.012
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Aiming at the linear temperature compensation algorithm's disadvantage of temperature measurement error in rotary kiln infrared scanning temperature measurement process, this paper proposes a precise nonlinear cubic polynomial fitting temperature compensation algorithm. The proposed algorithm compensates the temperature values of scanning points on rotary kiln surface by following steps: Calculating temperature difference between the real temperature value of rotary kiln and temperature value measured by infrared scanning temperature measurement system; Fitting the temperature difference data with cubic polynomial; Using the obtained function to compensate temperature. Experimental result shows that compared with the usual linear temperature compensation algorithm, the accuracy of proposed algorithm has raised about 2.25 times when cubic polynomial is used. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：160 / 164
页数：5
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