Enhanced Infrared Image Processing for Impacted Carbon/Glass Fiber-Reinforced Composite Evaluation

被引：14

作者：

Zhang, Hai ^{[1
,9
]}

Avdelidis, Nicolas P. ^{[1
,2
]}

Osman, Ahmad ^{[3
,4
]}

Ibarra-Castanedo, Clemente ^{[1
]}

Sfarra, Stefano ^{[5
,6
]}

Fernandes, Henrique ^{[7
]}

Matikas, Theodore E. ^{[8
]}

Maldague, Xavier P. V. ^{[1
]}

机构：

[1] Laval Univ, Dept Elect & Comp Engn, Comp Vis & Syst Lab, 1065 Av Med, Quebec City, PQ G1V 0A6, Canada

[2] AIRC, Coll Rd, Cranfield MK43 0AL, Beds, England

[3] Fraunhofer Inst Nondestruct Testing IZFP, Dept Inspect Components & Assemblies, D-66123 Saarbrucken, Germany

[4] Univ Appl Sci, Htw Saar, D-66117 Saarbrucken, Germany

[5] Univ Aquila, Dept Ind & Informat Engn & Econ, LasER Lab, I-67100 Laquila, Italy

[6] Tomsk Polytech Univ, Tomsk 634028, Russia

[7] Univ Fed Uberlandia, Sch Comp Sci, BR-38400902 Uberlandia, MG, Brazil

[8] Univ Ioannina, Mech Smart Sensors & Nondestruct Evaluat MSS NDE, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece

[9] Univ Toronto, Ctr Adv Diffus Wave Technol CADIFT, Dept Mech & Ind Engn, 5 Kings Coll Rd, Toronto, ON M5S 3G8, Canada

来源：

SENSORS | 2018年 / 18卷 / 01期

基金：

加拿大自然科学与工程研究理事会; 俄罗斯科学基金会;

关键词：

infrared thermography; polynomial fitting; low-order derivative; composite; low-velocity impact; PRINCIPAL COMPONENT THERMOGRAPHY; LASER LINE THERMOGRAPHY; POLYMER; FLAWS;

D O I：

10.3390/s18010045

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, an infrared pre-processing modality is presented. Different from a signal smoothing modality which only uses a polynomial fitting as the pre-processing method, the presented modality instead takes into account the low-order derivatives to pre-process the raw thermal data prior to applying the advanced post-processing techniques such as principal component thermography and pulsed phase thermography. Different cases were studied involving several defects in CFRPs and GFRPs for pulsed thermography and vibrothermography. Ultrasonic testing and signal-to-noise ratio analysis are used for the validation of the thermographic results. Finally, a verification that the presented modality can enhance the thermal image performance effectively is provided.

引用

页数：13

共 27 条

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