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
-
Nanotribological and wetting performance of hierarchical patterns
Date2016.02.23 CategoryInternational Views123490 -
Demonstration of Disturbance Propagation and Amplification in Car-Following Situation for Enhancement of Vehicle Platoon System
Date2015.09.16 CategoryInternational Views147708 -
Relative Measurement of Acoustic Nonlinear Parameters and Comparison of Sensitivity to Thermal Aging
Date2015.09.16 CategoryInternational Views117538 -
Non-contact Measurement of Elastic Modulus by using Laser Ultrasonic
Date2015.09.16 CategoryInternational Views232573 -
Relationship between Second- and Third-order Acoustic Nonlinear Parameters in Relative Measurement
Date2015.09.16 CategoryInternational Views138577 -
Non-Contact Evaluation of Acoustic Nonlinearity of a Laser-Generated Surface Wave in a Plastically Deformed Aluminum Alloy
Date2015.09.16 CategoryInternational Views160139 -
Influence of repetitive pulsed laser irradiation on the surface characteristics of an aluminum alloy in the melting regime
Date2015.09.16 CategoryInternational Views282311 -
Real-time detection of surface cracks on silicon wafers during laser beam irradiation
Date2015.09.16 CategoryInternational Views249558 -
High power CW laser-induced damage of CMOS image sensor
Date2015.09.16 CategoryDomestic Views97764 -
Measurement of Ultrasonic Nonlinear Parameter by Using Non-Contact Ultrasonic Receiver
Date2015.09.16 CategoryDomestic Views96827 -
Study on the Nonlinear Electromagnetic Acoustic Resonance Method for the Evaluation of Hidden Damage in a Metallic Material
Date2015.09.16 CategoryDomestic Views95815 -
Influence of laser beam profiles on the frequency bandwidth of laser-generated surface acoustic waves
Date2015.09.16 CategoryInternational Views121903 -
Laser ultrasonic inspection in ablation regime
Date2015.09.16 CategoryInternational Views132387 -
Improvement of Crack Sizing Performance by using Nonlinear Ultrasonic Technique
Date2015.09.16 CategoryInternational Views104092 -
In-Line Ultrasonic Monitoring for Sediments Stuck on Inner Wall of a Polyvinyl Chloride Pipe
Date2014.09.29 CategoryInternational Views129268 -
In situ detection of laser-induced slip initiation on the silicon wafer surface
Date2014.09.29 CategoryInternational Views104274 -
Initiation time of near-infrared laser-induced slip on the surface of silicon wafers
Date2014.09.29 CategoryInternational Views112365 -
Evaluation of Ultrasonic Nonlinear Characteristics in Artificially Aged Al6061-T6
Date2014.09.29 CategoryDomestic Views121854 -
Simulations for Internal Defect Inspection using Laser Generated Ultrasonic Wave in Ablation Regime
Date2014.09.29 CategoryDomestic Views128170 -
Slip damage of silicon wafers subjected to continuous infrared laser irradiation
Date2014.09.29 CategoryInternational Views105410