결함 화상화를 통한 NAUT 특성평가 연구
The Research on NAUT Characteristics Evaluation by Defection Image
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참고문헌
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초록
The NAUT(Non contact Air coupled Ultrasonic Testing) is one of the ultrasonic wave inspection methods. It compensates High power ultrasound Pulser Receiver, pre-amp, air probe of high sensitivity in air to generate loss energy by NAUT methods. Generally, in case of ultrasound inspection, it applies contact methods by using couplant. However it can inspect of UT without couplant by this NAUT. The ultrasound transmission· reception is composed in stable condition in NAUT. It can inspect high· low material or the specimen of rough part, the narrow spot, too. The spot welding is applying the inosculation of automobile component, car body, all boards. The CFRP is necessity of NDE because of the solidity changes material according to lamella tearing. Therefore it checked on realization whether and commercialization in the spot welding and CFRP inspection that the NAUT would be applied them.
Abstract
The NAUT(Non contact Air coupled Ultrasonic Testing) is one of the ultrasonic wave inspection methods. It compensates High power ultrasound Pulser Receiver, pre-amp, air probe of high sensitivity in air to generate loss energy by NAUT methods. Generally, in case of ultrasound inspection, it applies contact methods by using couplant. However it can inspect of UT without couplant by this NAUT. The ultrasound transmission· reception is composed in stable condition in NAUT. It can inspect high· low material or the specimen of rough part, the narrow spot, too. The spot welding is applying the inosculation of automobile component, car body, all boards. The CFRP is necessity of NDE because of the solidity changes material according to lamella tearing. Therefore it checked on realization whether and commercialization in the spot welding and CFRP inspection that the NAUT would be applied them.
참고문헌 (5)
- I.K.Park, "spot 용접 접합면의 초음파 비파괴평가 기법(제 1보 C-scan 기법을 중심으로)", J.KSNT, 14(2), pp.112~ (1994)
- T.Masakazu, "Characteristics of Probes for Non Contact Air coupled Ultrasonic Testing", Proceedings of the Symposium on Ultrasonic Testing of Japanese Society for Non-Destructive Inspection, pp.81~86 (2010)
- J. H. Lee, "A Study on Non-contacting Ultrasonic Testing for Inspecting Delamination in CFRP", J.KSPE, 24(3), pp.23~30 (2007)
- 최상우, "배관부 부식 및 결함 평가를 위한 레이저 유도 초음파 적용 기술", 비파괴검사학회지, 25(2), pp.95~102 (2005), 한국비파괴검사학회
- Y. G. Kim, "Automatic Noncontact Ultrasonic Inspection Technique", J.KSNT, 13(4), pp.25~31 (1994)