Near infrared multispectral solution to ice detection on CF composite material wings

GAO Jian-shu; HAN Ren-yi; YU Zhi-jing; QIAO Wen

doi:10.3788/OPE.20111906.1250

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Near infrared multispectral solution to ice detection on CF composite material wings

Article | 更新时间：2020-08-12

- Near infrared multispectral solution to ice detection on CF composite material wings
- Optics and Precision Engineering Vol. 19, Issue 6, Pages: 1250-1255(2011)
- 作者机构：
  
  1. 天津大学精密仪器与光电子工程学院天津,300072
  2. 中国民航大学航空自动化学院天津,300300
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111906.1250
  CLC： V267.3;O434.33
- Received：27 December 2010，
  
  Revised：27 February 2011，
  
  Published Online：25 June 2011，
  
  Published：25 June 2011
- 稿件说明：
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高建树, 韩仁义, 于之靖, 乔文. 复合材料结构机翼表面残冰的近红外多光谱检测[J]. 光学精密工程, 2011,19(6): 1250-1255

GAO Jian-shu, HAN Ren-yi, YU Zhi-jing, QIAO Wen. Near infrared multispectral solution to ice detection on CF composite material wings[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1250-1255
高建树, 韩仁义, 于之靖, 乔文. 复合材料结构机翼表面残冰的近红外多光谱检测[J]. 光学精密工程, 2011,19(6): 1250-1255 DOI： 10.3788/OPE.20111906.1250.

GAO Jian-shu, HAN Ren-yi, YU Zhi-jing, QIAO Wen. Near infrared multispectral solution to ice detection on CF composite material wings[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1250-1255 DOI： 10.3788/OPE.20111906.1250.

摘要

提出了一种新的近红外多光谱检测法对碳纤维复合材料结构机翼表面的残冰进行检测。建立了该方法的理论模型并进行了实验验证。首先

根据冰与水和除冰液在不同红外波段下具有不同反射光谱特性

提出了用于残冰检测的理论算法。然后对参考通道

低通道及高通道所测图像的灰度值进行比较分析

总结得到了判断机翼蒙皮上残冰存在的对比度阈值

。最后

分析了误差可能产生的区间及消除方法。实验结果表明

对于白色涂层的复合材料结构蒙皮

当

0.03时

就可以断定结构表面上存在残冰;当

0时

可以断定表面上肯定没有冰;当

处于0~0.03时

为安全起见需要对蒙皮进行二次检查以消除不确定因素产生的误差。而对于其他颜色涂层蒙皮的残冰检测

要根据不同的颜色设定不同的对比度阈值

。本研究证明了可以将冰与水的近红外反射光谱差异特性应用到以复合材料结构为机翼蒙皮的残冰检测中。

Abstract

In order to realize the ice detection for aircraft wings made of carbon fiber composite materials

a near infrared multispectral solution to ice detection and measurement is presented. Firstly

a new algorithm for ice detection is proposed based on the different reflectance spectra of water and ice in a certain wavelength band. Then

by analyzing the gray value of reflectance spectra between water and ice detected in the reference sub-band

the lower sub-band and the upper sub-band

the threshold of contrast

to ice detection and measurement on aircraft wings is determined. Finally

this paper analyses the position region of contrast

that error may happen in the measurement

and describes the method to eliminate the error. Experimental results show that for the white painted wing

if the contrast is greater than 0.03

it is considered that the ice is present on the surface;but if the contrast is less than zero

no ice is present. While the contrast is between zero and 0.03

a second detection should be done to reduce or eliminate the effects of uncertain factors.Furthermore

while the aluminum is painted by other colors

different thresholds of contrast should be set to remove this effect. It is proved that the different reflectance spectra of water and ice in a certain wavelength band can be used to detect and measure the ice on aircraft wings made of carbon fiber composite materials.

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references

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