This article presents a laser-based ultrasonic technique (LBUT) in ablation regime for inspection of internal defects using the pulsed high-power laser (HPL) and two wave mixing (TWM) detector. Pulsed HPL source has been recognized as a good ultrasonic generator to overcome weakness of the conventional contact transducer in harsh environment such as high temperature and rough surface of measurement target. And TWM detecting as non-contact method was used to measure the displacement by laser ultrasonic wave. The aim of this study is to investigate transmission characteristics of laser ultrasonic to various internal defects by the fully non-contact LBUT. Experimental results for various artificial internal defects showed the usefulness of the LBUT in ablation regime in nondestructive testing (NDT) field.

Published in:

Nondestructive Evaluation/Testing (FENDT), 2014 IEEE Far East Forum on

Date of Conference:

20-23 June 2014

Page(s):: 66 - 68
Print ISBN:: 978-1-4799-4731-7
INSPEC Accession Number:: 14694458

Conference Location :: Chengdu
DOI:: 10.1109/FENDT.2014.6928234
Publisher:: IEEE

나눔글꼴 설치 안내

이 PC에는 나눔글꼴이 설치되어 있지 않습니다.

이 사이트를 나눔글꼴로 보기 위해서는
나눔글꼴을 설치해야 합니다.

✔ 설치 취소

SketchBook5,스케치북5

Impacts of Hanyang's Research :: Nondestuctive Evaluation for Future Safety

Laser ultrasonic inspection in ablation regime

단축키

단축키

Laser ultrasonic inspection in ablation regime

Published in:

Date of Conference:

Feasibility of MFC (Macro-Fiber Composite) Transducers for Guided Wave Technique

Imaging of Harmonic Wave Generated by Contact Acoustic Nonlinearity in Obliquely Incident Ultrasonic Wave

모드선택성을 강화한 비접촉식 유도초음파 기술

인듐안티모나이드(InSb) 소자를 이용한 적외선 방사온도 계측시스템의 개발 연구

Fully Non-Contact Assessment of Acoustic Nonlinearity According to Plastic Deformation in Al6061 Alloy

"수박에서의 초음파 전파 특성에 관한 실험적 연구"

펄스형 초음파 신호에서 비선형 파라미터의 정밀추정

Initial Second Harmonic Generation in Narrowband Surface Waves by Multi-Line Laser Beams for Two Kinds of Spatial Energy Profile

Reflection and Transmission of Acoustic Waves Across Contact Interfaces

"Development of Pressure Control System of Contact Transducer for Measurement of Ultrasonic Nonlinear Parameter "

Simulations for Internal Defect Inspection using Laser Generated Ultrasonic Wave in Ablation Regime

Initial Second Harmonic Generation in Narrowband Surface Waves by Multi-Line Laser Beams for Two Kinds of Spatial Energy Profile Models

Experimental Characterization of Cyclic Deformation in Copper Using Ultrasonic Nonlinearity

전파속도를 알 수 없는 재료에서의 AE 발생위치 온라인 측정

A6061 합금의 석출경화 열처리에 따른 탄성파의 음향 특성 연구

Porosity evaluation of additive manufactured parts: ultrasonic testing and eddy current testing

회절초음파를 이용한 노치 피로균열의 균열깊이 평가

Evaluation of Ultrasonic Nonlinear Characteristics in Artificially Aged Al6061-T6

"웨이브렛 변환을 이용한 초음파 펄스 에코신호의 디컨볼루션"

초음파주사현미경의 분해능 향상을 위한 중첩된 펄스에코 신호의 분리기법(디컨볼루션과 웨이브렛 변환의 혼합기법)

나눔글꼴 설치 안내

이 PC에는 나눔글꼴이 설치되어 있지 않습니다.