Results 11 to 20 of about 14,446 (253)

Fast and Smart State Characterization of Large-Format Lithium-Ion Batteries via Phased-Array Ultrasonic Sensing Technology [PDF]

open access: yesSensors
Lithium-ion batteries (LIBs) are widely used in electric vehicles and energy storage systems, making accurate state transition monitoring a key research topic.
Zihan Zhou   +5 more
doaj   +2 more sources

Numerical simulation of phased array ultrasonic testing for fillet weld defects of type-B sleeve

open access: yesYou-qi chuyun, 2022
Type-B sleeve repair is one of the main permanent repair methods for long-distance oil and gas pipelines at present. However, fillet weld defects are often produced during the operation, which need to be detected and evaluated by phased array ultrasonic ...
Hongbo ZHANG   +5 more
doaj   +1 more source

Phased Array Ultrasonic Sector Scan Imaging of Helicopter Damper Bolts Based on Vector Coherence Factor

open access: yesApplied Sciences, 2022
Non-destructive testing of the cracks on the in-service bolt’s shank with size M18 is a challenging technical problem. Due to the weak echo energy of cracks with large buried depths, the conventional phased array ultrasonic sector scan imaging has a low ...
Jingxing Huang   +5 more
doaj   +1 more source

Sound Field Modeling Method and Key Imaging Technology of an Ultrasonic Phased Array: A Review

open access: yesApplied Sciences, 2022
An ultrasonic phased array consists of multiple ultrasonic probes arranged in a certain regular order, and the delay time of the excitation signal sent to each array element is controlled electronically.
Qian Xu, Haitao Wang
doaj   +1 more source

Ultrasonic fingerprinting by phased array transducer [PDF]

open access: yes, 2016
Increasing quantity of spent nuclear fuel that must be under national and international control requires a novel approach to safeguard techniques and equipment. One of the proposed approaches is utilize intrinsic features of casks with spent fuel.
Abramets, V.   +4 more
core   +2 more sources

Parameter optimization method for delamination defects detection of composite laminate using phased array ultrasonic

open access: yesCailiao gongcheng, 2020
Aiming at the problem of accurate identification of delamination defects of composite laminates, an optimization method of activation aperture of phased array ultrasonic testing was proposed by simulation and experiment, and the effects of the activation
CAO Hong-yi   +6 more
doaj   +1 more source

Automated Classification of Pipeline Defects from Ultrasonic Phased Array Total Focusing Method Imaging

open access: yesEnergies, 2022
The defects in the welds of energy pipelines have significantly influenced their safe operation. The inefficient and inaccurate detection of the defects may give rise to catastrophic accidents.
Haibin Wang   +6 more
doaj   +1 more source

3D cone-beam breast ultrasonic tomography imaging for capacitive micromachined ultrasonic transducer cylindrical array [PDF]

open access: yesJASA Express Letters, 2021
In this paper, a 3D cone-beam ultrasonic transmission tomography method for capacitive micromachined ultrasonic transducer (CMUT) cylindrical phased array was proposed.
Yu Pei   +6 more
doaj   +1 more source

Phased array ultrasonic testing of micro-flaws in additive manufactured titanium block

open access: yesMaterials Research Express, 2020
While titanium components manufactured by additive manufacturing have been widely used in direct molding of complex components, their performance is strongly affected by existing internal flaws generated in the unique manufacturing process.
Xiaohui Wang   +6 more
doaj   +1 more source

Contactless Fluid Manipulation in Air: Droplet Coalescence and Active Mixing by Acoustic Levitation [PDF]

open access: yes, 2018
Acoustic manipulation by an ultrasonic phased array provides an entirely new approach to processes such as coalescence, mixing, separation, and evaporation occurring in the generation of new materials, physical property measurement, the biomedical ...
Abe Yutaka   +3 more
core   +2 more sources

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