Results 21 to 30 of about 258,076 (199)

Robotic Ultrasonic Testing Technology for Aero-Engine Blades

open access: yesSensors, 2023
With the rapid development of the aerospace industry, the quality inspection of complex curved components, such as aero-engine blades, is becoming increasingly strict.
Pengzhi Ma, Chunguang Xu, Dingguo Xiao
doaj   +1 more source

The Application of Ultrasonic NDT Techniques in Tribology [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2005
The use of ultrasonic reflection is emerging as a technique for studying tribological contacts. Ultrasonic waves can be transmitted non-destructively through machine components and their behaviour at an interface describes the characteristics of that contact.
openaire   +2 more sources

Mobile NDT Inspection System Using Ultrasonic

open access: yesJournal of Korea Multimedia Society, 2016
Suk-Hwan Lee, Seong-Geun Kwon
exaly   +3 more sources

Sparse Deconvolution Methods for Ultrasonic NDT [PDF]

open access: yesJournal of Nondestructive Evaluation, 2017
In this work we present two sparse deconvolution methods for nondestructive testing. The first method is a special matching pursuit (MP) algorithm in order to deconvolve the mixed data (signal and noise), and thus to remove the unwanted noise. The second method is based on the approximate Prony method (APM).
Boßmann, Florian   +4 more
openaire   +3 more sources

Estimation on Embedment Length of Anchor Bolt inside Concrete Using Equation for Arrival Time and Shortest Time Path of Ultrasonic Pulse

open access: yesApplied Sciences, 2020
The bearings or the seismic isolation bearings that play a critical role in bridge structures are fixed to the substructure by anchor bolts. However, the embedment depth of the constructed anchor bolts does often not reach the designed one and may lead ...
Chiwon Song   +4 more
doaj   +1 more source

Sensors for Ultrasonic Nondestructive Testing (NDT) in Harsh Environments [PDF]

open access: yesSensors, 2020
In this special issue of Sensors, seven peer-reviewed manuscripts appear on the topic of ultrasonic transducer design and operation in harsh environments: elevated temperature, high gamma and neutron fields, or the presence of chemically aggressive species.
Anthony N. Sinclair, Robert Malkin
openaire   +4 more sources

A Novel Nondestructive Testing Probe Using AlN-Based Piezoelectric Micromachined Ultrasonic Transducers (PMUTs)

open access: yesMicromachines
Ultrasonic nondestructive testing (NDT) usually utilizes conventional bulk piezoelectric transducers as transceivers. However, the complicated preparation and assembly process of bulk piezoelectric ceramics limits the development of NDT probes toward ...
Jiawei Yin, Zhixin Zhou, Liang Lou
doaj   +1 more source

Development of an Estimation Method for Depth of Spalling Damage in Concrete Pavement by Ultrasonic Velocity Measurement

open access: yesApplied Sciences, 2022
As the amount of aged pavement increases, functional damage, such as spalling, occurs frequently on Portland Cement Concrete pavement (PCC) in South Korea.
Gyumin Yeon   +4 more
doaj   +1 more source

Signal processing methods for defect detection in multi-wire helical waveguides using ultrasonic guided waves [PDF]

open access: yes, 2015
This thesis was submitted for the degree of Master of Philosophy and awarded by Brunel University LondonNon-Destructive Testing of industrial components carries vital importance, both financially and safety-wise.
Yucel, Mehmet Kerim
core   +5 more sources

Nondestructive test for quality control in laboratory-scale fabrication of laminated composites using programmable portable ultrasonic

open access: yesInternational Journal of Lightweight Materials and Manufacture
Laminated composites are the most frequently used component materials in manufacturing unmanned aerial vehicles (UAVs) in research centers or start-up industries.
Yusuf Giri Wijaya   +4 more
doaj   +1 more source

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