Laser ultrasonic inspection in ablation regime
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6928234&tag=1
Laser ultrasonic inspection in ablation regime
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
-
Wavelet analysis based deconvolution to improve the resolution of scanning acoustic microscope images for the inspection of thin die layer in semiconductor
Date2012.05.03 CategoryInternational Views134095 -
Laser ultrasonic inspection in ablation regime
Date2015.09.16 CategoryInternational Views132384 -
Ultrasonic Characterization for directional coarsening in nickel-base superalloy during creep exposure
Date2012.06.21 CategoryInternational Views130891 -
In-Line Ultrasonic Monitoring for Sediments Stuck on Inner Wall of a Polyvinyl Chloride Pipe
Date2014.09.29 CategoryInternational Views129264 -
Influence of slit width on harmonic generation in ultrasonic surface waves excited by masking a laser beam with a line arrayed slit
Date2014.03.05 CategoryInternational Views127878 -
CHARACTERIZATION OF TAINLESS STEEL FIBER REINFORCED ALUMINUM COMPOSITE USING ULTRASONIC NONLINEARITY
Date2012.05.03 CategoryInternational Views127091 -
Assessment of Thermal Aging of Aluminum Alloys by Acoustic Nonlinearity Measurement of Surface Acoustic Waves
Date2017.01.16 CategoryInternational Views124125 -
GENERATION OF WAVELENGTH-MATCHED GUIDED WAVE IN TUBE BY ARRAYED LASER BEAM METHOD
Date2012.05.03 CategoryInternational Views123584 -
Automatic Non-Contact Defect Inspection of Cylindrical Shell Using a Laser-Ultrasonic Technique
Date2012.05.03 CategoryInternational Views123545 -
Nanotribological and wetting performance of hierarchical patterns
Date2016.02.23 CategoryInternational Views123484 -
Influence of laser beam profiles on the frequency bandwidth of laser-generated surface acoustic waves
Date2015.09.16 CategoryInternational Views121893 -
Acoustic Nonlinearity of a Laser-Generated Surface Wave in a Plastically Deformed Aluminum Alloy
Date2014.03.05 CategoryInternational Views121073 -
Imaging of contact acoustic nonlinearity using synthetic aperture technique
Date2014.03.05 CategoryInternational Views120843 -
" Bending Fatigue Evaluation of Al6061 Alloy by Laser-generated Surface Wave"
Date2012.05.03 CategoryInternational Views119855 -
"Study on the Development of Multi-Path Ultrasonic Gas Flow Meter"
Date2012.05.03 CategoryInternational Views119343 -
Reliability Evaluation of Hinges Used in Electronic Communication Devices
Date2012.05.03 CategoryInternational Views118172 -
Automatic Inspection of Pipe using Non-contact Guided-wave Technique with Enhanced Mode-selectivity
Date2012.05.03 CategoryInternational Views118030 -
Relative Measurement of Acoustic Nonlinear Parameters and Comparison of Sensitivity to Thermal Aging
Date2015.09.16 CategoryInternational Views117538 -
Frequency Response of Narrowband Surface Waves Generated by Laser Beams Spatially Modulated with a Line-arrayed Slit Mask
Date2012.05.03 CategoryInternational Views117168 -
A Novel Method for Distance and Relative Velocity Measurement in Rear-End Collision Warning System
Date2012.05.03 CategoryInternational Views116500