Breakpoint detection of heating wire in wind blade moulds using infrared thermography

被引：8
|
作者：
Zeng, Zhi [1 ]
Tao, Ning [2 ]
Feng, Lichun [2 ]
Li, Yeshu [3 ]
Ma, Yan [1 ]
Zhang, Cunlin [2 ]
机构：
[1] Chongqing Normal Univ, Coll Comp & Informat Sci, Chongqing 400047, Peoples R China
[2] Capital Normal Univ, Dept Phys, Minist Educ, Key Lab Terahertz Optoelect,Beijing Key Lab Terah, Beijing 100048, Peoples R China
[3] Sinomatech Wind Power Blades Co Ltd, Beijing 100092, Peoples R China
来源：
INFRARED PHYSICS & TECHNOLOGY | 2014年 / 64卷
基金：
美国国家科学基金会;
关键词：
Wind blade; Mould; High voltage discharging (HVD); Infrared thermography; Breakpoint;
D O I：
10.1016/j.infrared.2013.12.011
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In order to manufacture the fibre glass wind blades, one kind of mould embedded with heating wire is used not only for making numerous 'copies' of the original sample, and also heating the mould to a certain temperature for curing. The heating wire is embedded in fibre glass as a sandwich structure, and it may break after a long time usage at high temperatures. In this study, a high voltage discharging (HVD) circuit is used to trigger HVD at the breakpoint, which generates heat and therefore causes temperature increase at the corresponding front surface, one infrared camera is used to monitor the temperature evolution. It successfully and quickly detects breakpoints in spar moulds. (C) 2014 Published by Elsevier B.V.
引用
收藏
页码：73 / 78
页数：6
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