Results 31 to 40 of about 9,656 (299)

Secondary Interface Echoes Suppression for Immersion Ultrasonic Imaging Based on Phase Circular Statistics Vector

open access: yesSensors, 2023
Immersion ultrasonic phased array imaging technology offers great advantages, particularly in coupling and automatic detection of industrial non-destructive testing (NDT).
Ming Chen   +5 more
doaj   +1 more source

Experimental investigation of inter-element isolation in a medical array transducer at various manufacturing stages [PDF]

open access: yes, 2016
This work presents the experimental investigation of vibration maps of a linear array transducer with 192 piezoelements by means of a laser Doppler vibrometer at various manufacturing finishing steps in air and in water.
Bini, Fabiano   +2 more
core   +1 more source

Adaptive ultrasonic rail wheel testing system with advanced phased array technology

open access: yesResearch and Review Journal of Nondestructive Testing, 2023
Non-destructive wheel inspection by means of ultrasound testing (UT) is crucial for highspeed, local or cargo trains. Any failure can lead to catastrophic events resulting in high material damage and personal injury or even fatalities.
Thomas Würschig   +5 more
doaj   +1 more source

Ultrasonic inspection of spent nuclear fuel casks [PDF]

open access: yes, 2007
The paper describes the main aspects of ultrasonic non-destructive inspection of casks with spent fuel. Digital Focus Array technique is proposed for acoustic imaging of spent nuclear fuel casks' closure weld.
I Bolotina   +8 more
core   +2 more sources

Ultrasonic Sampling Phased Array Testing as a Replacement for X-ray Testing of Weld Joints in Ship Construction [PDF]

open access: yesTransNav, 2012
According to European Standard EN 1712 ultrasonic testing of thin-walled welded joints is mandatory for wall thicknesses of more than 8 mm only. Any thinner components do have to undergo X-ray inspection. Besides various advantages of X-ray testing viz.
Andrey Bulavinov   +3 more
doaj  

Identification of Lack of Fusion and Penetration in Circumferential Fillet Weld by Phased Array Ultrasonic Method in Gas Industry

open access: yesCommunications, 2015
The article deals with non-destructive ultrasonic identification of lack of fusion and penetration in circumferential fillet welds in gas industry by using Phased Array method.
Radoslav Konar   +3 more
doaj   +1 more source

Frequency-domain imaging algorithm for ultrasonic testing by application of matrix phased arrays

open access: yesMATEC Web of Conferences, 2017
Constantly increasing demand for high-performance materials and systems in aerospace industry requires advanced methods of nondestructive testing. One of the most promising methods is ultrasonic imaging by using matrix phased arrays.
Dolmatov Dmitry   +2 more
doaj   +1 more source

Thermoacoustic phased-array radiators – Theory, characteristics, and applications

open access: yesResearch and Review Journal of Nondestructive Testing, 2023
Standard non-invasive acoustic non-destructive testing (NDT) methods like testing in contact or using immersion tank arrangements are limited since the probes need to be in direct contact with the test piece or using a fluid as coupling media.
Daniel Hufschläger   +4 more
doaj   +1 more source

Study on Denoising Method of Weld Defect Signal Based on SSA-VMD-WPD

open access: yesApplied Sciences
Defects in welds can affect the structural safety and reliability of workpieces. Currently, the method of using phased array ultrasonic inspection technology for non-destructive testing of weld structures with high detection efficiency, good sensitivity,
Xiangqing Chen   +4 more
doaj   +1 more source

Ultrasonic Inspection for Welds with Irregular Curvature Geometry Using Flexible Phased Array Probes and Semi-Auto Scanners: A Feasibility Study

open access: yesApplied Sciences, 2022
Pipes of various shapes constitute pipelines utilized in industrial sites. These pipes are coupled through welding, wherein complex curvatures such as a flange, an elbow, a reducer, and a branch pipe are often found. Using phased array ultrasonic testing
Seong Jin Lim   +3 more
doaj   +1 more source

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