Results 11 to 20 of about 453,542 (260)

Discrimination of Poor Electrode Junctions within Lithium-Ion Batteries by Ultrasonic Measurement and Deep Learning

open access: yesBatteries, 2022
Lithium-ion batteries, which have high energy density, are the most suitable batteries for use in high-tech electromechanical applications requiring high performance.
Young-In Hwang   +5 more
doaj   +1 more source

Assessment of material property variations with resonant ultrasound spectroscopy (RUS) when using additive manufacturing to print over existing parts

open access: yesJournal of Advanced Joining Processes, 2022
Additive manufacturing (AM) opens up many opportunities for repair and feature enhancement of existing components by 3D printing over already existing structures. However, much research, on the irregularities in the microstructure and lack of consistency
Hossein Taheri   +3 more
doaj   +1 more source

Thermographic non-destructive evaluation for natural fiber-reinforced composite laminates [PDF]

open access: yes, 2018
Natural fibers, including mineral and plant fibers, are increasingly used for polymer composite materials due to their low environmental impact. In this paper, thermographic non-destructive inspection techniques were used to evaluate and characterize ...
Avdelidis, Nicolas P.   +7 more
core   +3 more sources

Total focussing method for volumetric imaging in immersion non destructive evaluation [PDF]

open access: yes, 2007
This paper describes the use of a 550 (25x22) element 2MHz 2D piezoelectric composite array in immersion mode to image an aluminum test block containing a collection of artificial defects.
Drinkwater, B.   +6 more
core   +1 more source

A system identification based approach for pulsed eddy current non-destructive evaluation [PDF]

open access: yes, 2007
This paper is concerned with the development of a new system identification based approach for pulsed eddy current non-destructive evaluation and the use of the new approach in experimental studies to verify its effectiveness and demonstrate its ...
Agurto, A.   +3 more
core   +1 more source

Parallel double-plate capacitive proximity sensor modelling based on effective theory

open access: yesAIP Advances, 2014
A semi-analytical model for a double-plate capacitive proximity sensor is presented according to the effective theory. Three physical models are established to derive the final equation of the sensor. Measured data are used to determine the coefficients.
Nan Li, Haiye Zhu, Wenyu Wang, Yu Gong
doaj   +1 more source

Pulse-Echo Harmonic Generation Measurements for Non-destructive Evaluation [PDF]

open access: yes, 2013
Ultrasonic harmonic generation measurements have shown great potential for detecting nonlinear changes in various materials. Despite this, the practical implementation of the technique in non-destructive evaluation (NDE) has typically been limited to the
Best, S. R.   +2 more
core   +2 more sources

Torsional mode ultrasonic helical waveguide sensor for re-configurable temperature measurement

open access: yesAIP Advances, 2016
This paper introduces an ultrasonic torsional mode based technique, configured in the form of a helical “spring-like” waveguide, for multi-level temperature measurement.
Suresh Periyannan   +2 more
doaj   +1 more source

Multiple temperature sensors embedded in an ultrasonic “spiral-like” waveguide

open access: yesAIP Advances, 2017
This paper studies the propagation of ultrasound in spiral waveguides, towards distributed temperature measurements on a plane. Finite Element (FE) approach was used for understanding the velocity behaviour and consequently designing the spiral waveguide.
Suresh Periyannan   +2 more
doaj   +1 more source

Non-destructive evaluation of an infusion process using capacitive sensing technique [PDF]

open access: yes, 2016
In this study, a capacitive sensing based non-destructive evaluation technique is applied to a vacuum assisted resin infusion process for the fabrication of glass fibre reinforced composites, as such different steps of the fabrication process (the ...
Bossuyt, Frederick   +7 more
core   +1 more source

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