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Total Flux 센서를 이용한 대형 케이블의 단면 손상 검색

Cross-sectional loss quantification for large diameter cable using Total Flux sensor

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  • URLhttps://db.koreascholar.com/Article/Detail/287501
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한국구조물진단유지관리공학회 (The Korea Institute For Structural Maintenance and Inspection)
초록

This large diameter cable NDE technique was based on the direct current (DC) magnetization technique and a search coil-based magnetic flux measurement. A total flux sensor head was fabricated that was consisted by a magnetization part to magnetize the specimen and a sensing part to measure the total magnetic flux. The magnetization part was consisted by an electro-magnet yoke that fabricated by winding a coil. The magnetic field for magnetizing the main cable was generated by applying the low frequency DC voltage to the winded coil. The sensing part was configured by two semi-circular search coils, and it measures the electromotive force that pass through the search coil by using the faraday’s law of induction. Total flux was calculated by integrating the measured magnetic flux. Then, B-H curve was extracted using the total flux, and cross-sectional loss can be detected using variation of features from the B-H curve.

저자
  • 김주원(성균관대학교 미래도시융합공학과) | Kim, Ju Won
  • 김준경(성균관대학교 건설환경시스템공학과,) | Kim, Jun Kyeong
  • 문대중((주)이제이텍) | Moon, Dae Joong
  • 박승희(성균관 대학교 건축토목공학과) | Park, Seunghee 교신저자