Laser ultrasonic technology and its applications in nondestructive testing in solids

2005 ◽  
Author(s):  
Gang Li ◽  
Guoping Zhang
Keyword(s):  
Nondestructive Testing ◽  
Laser Ultrasonic ◽  
Ultrasonic Technology

Review on the Development of Non-Destructive Testing Based on Laser Ultrasonic Technique

2014 ◽  
Author(s):  
Yuanfeng He ◽  
Wenwu Zhang
Keyword(s):  
Quality Control ◽  
Optical Method ◽  
Vibration Signal ◽  
Quality Inspection ◽  
Ultrasonic Technique ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Laser Ultrasonic ◽  
Ultrasonic Technology ◽  
Non Destructive

Development of industry demands better performance of equipments and devices than ever. The property of material used to produce the equipments is the precondition to ensure the quality. As equipments are usually required to be integral during the quality inspection, non-destructive testing (NDT) plays an increasingly import role in modern industry quality control. Different NDT methods are introduced and analyzed. The mechanism of ultrasonic exciting is described. After the ultrasonic is excited, the vibration signal can be detected by transducer or optical method which are then illustrated. In the section of development of laser ultrasonic technology, contributions made by various researchers in theoretic development, experiment, simulation and application are introduced and the corresponding content of the researches as well. The conclusion and the outlook of laser ultrasonic technique is made at the last.

Nondestructive Testing Cracks on Inner Surface of Thick Pipes by Laser Ultrasonic Visualization

2021 ◽  
Vol 58 (6) ◽  
pp. 0628004
Author(s):  
詹超 Zhan Chao ◽  
彭笑永 Peng Xiaoyong ◽  
李阳 Li Yang
Keyword(s):  
Nondestructive Testing ◽  
Laser Ultrasonic ◽  
Inner Surface

Recent developments of the laser ultrasonic technology and of its applications

2001 ◽  
pp. 27-42
Author(s):  
J.-P. Monchalin ◽  
A. Blouin ◽  
M. Choquet ◽  
D. Lévesque ◽  
A. Moreau
Keyword(s):  
Laser Ultrasonic ◽  
Ultrasonic Technology ◽  
Recent Developments

Applying Laser-Ultrasonic and Acoustic-Emission Methods to Nondestructive Testing at Different Stages of Deformation Formation in Friction Stir Welding

2020 ◽  
Vol 56 (3) ◽  
pp. 191-200
Author(s):  
K. A. Stepanova ◽  
I. Yu. Kinzhagulov ◽  
Yu. O. Yakovlev ◽  
A. S. Kovalevich ◽  
D. S. Ashikhin ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Friction Stir Welding ◽  
Nondestructive Testing ◽  
Laser Ultrasonic ◽  
Friction Stir

Inspection of the internal defects with different size in Ni and Ti additive manufactured components using laser ultrasonic technology

2022 ◽  
Vol 146 ◽  
pp. 107543
Author(s):  
Shiyuan Liu ◽  
Kangning Jia ◽  
Haopeng Wan ◽  
Lei Ding ◽  
Xiaodong Xu ◽  
...  
Keyword(s):  
Internal Defects ◽  
Laser Ultrasonic ◽  
Ultrasonic Technology

scholarly journals Measurement of Material Properties of Steel Sheets Using Laser Ultrasonic Technology

2014 ◽  
Vol 81 ◽  
pp. 1414-1419 ◽  
Author(s):  
Mitsuhiko Sano ◽  
Kazuhiro Ohara ◽  
Naoki Shimoda ◽  
Masashi Tsugeno
Keyword(s):  
Material Properties ◽  
Laser Ultrasonic ◽  
Steel Sheets ◽  
Ultrasonic Technology

The Present Development Situation of Laser Ultrasonic Nondestructive Testing Signal Processing System

2012 ◽  
Vol 532-533 ◽  
pp. 369-373
Author(s):  
Lie Xiang Xia ◽  
Yan Zhao ◽  
Yong Zhong Ma ◽  
Xiao Ning An
Keyword(s):  
Signal Processing ◽  
Nondestructive Testing ◽  
Detection System ◽  
Matching Pursuit ◽  
Ultrasonic Inspection ◽  
Processing System ◽  
Guided Wave ◽  
Ultrasonic Nondestructive Testing ◽  
Laser Ultrasonic ◽  
Signal Processing System

Currently, laser ultrasonic nondestructive testing is the best application prospect of nondestructive testing methods. This paper expounds the mechanism and the qualitative analysis of the common defects of the laser ultrasonic inspection and introduces the application of matching pursuit algorithm guided wave testing technology in signal processing. This paper focuses on the laser ultrasonic detection system and analysis of the detected data using the finite element method.

A Research on Nondestructive Testing to the Metal Welding Residual Stresses by the Laser - Generated Ultrasonic

2013 ◽  
Vol 850-851 ◽  
pp. 391-394
Author(s):  
Hai Tao Li
Keyword(s):  
Residual Stress ◽  
Nondestructive Testing ◽  
Residual Stresses ◽  
Welding Process ◽  
Ultrasonic Nondestructive Testing ◽  
Cooling Process ◽  
Laser Ultrasonic ◽  
Testing Technology ◽  
Internal Forces ◽  
Metal Welding

Because the local weld of the metal is affected by high temperature in the welding process, every temperature is always uneven after the completion of welding. so in the cooling process, the temperatures of the different dots cause different contractions .This situation will lead to internal forces. These forces will eliminate external variant part outside, but the internal residues still exist. They are the welding residual stresses. This paper mainly introduces the principle of laser ultrasonic nondestructive testing technology and laser ultrasonic nondestructive testing technology about the application and research of the residual stress in metal welding.

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