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포토믹서 테라헤르츠 기술 기반의 영상화 시스템을 통한 유리섬유 복합재료 결함의 비파괴검사법

Other Titles
 Non-destructive Evaluation of Defects of Glass fiber Composites using Imaging System based on Photo-mixer Terahertz Technique 
Authors
 오경환  ;  김덕중  ;  박동운  ;  지영빈  ;  오승재  ;  김학성 
Citation
 Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지), Vol.38(1) : 1-6, 2018 
Journal Title
 Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지) 
ISSN
 비파괴검사학회지 
Issue Date
2018
Keywords
Photo-Mixer ; Terahertz Wave ; Glass Fiber Composite ; Non-Destructive Evaluation
Abstract
In this study, non-destructive evaluation using photo-mixer terahertz technique was studied to visualize the hidden damage in composite structures. A terahertz wave system was developed based on photo-mixer to detect the internal defects of the composite structure, and foreign material was simulated in a glass fiber-reinforced plastic (GFRP) specimen using PET film coated with silver nano-wire. For the visualization, an imaging algorithm for terahertz signal processing and stage control was developed using a GUI based on LABVIEW. The inspection was performed using the developed continuous terahertz inspection system and the terahertz waveform acquired in the single frequency was used to visualize defects.
Files in This Item:
T201801043.pdf Download
DOI
10.7779/JKSNT.2018.38.1.1
Appears in Collections:
5. Research Institutes (연구소) > Institute for Medical Convergence (연의-생공연 메디컬융합연구소) > 1. Journal Papers
Yonsei Authors
Oh, Seung Jae(오승재)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/162199
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