Results 91 to 100 of about 59,957 (305)

The application of acoustic emission for detecting incipient cavitation and the best efficiency point of a 60 kW centrifugal pump: case study [PDF]

open access: yes, 2005
Pumps play a significant role in industrial plants and need continuous monitoring to minimise loss of production. To date, there is limited published information on the application of acoustic emission (AE) to incipient pump cavitation.
Mba, David, Dyson, G, Alfayez, L
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Thick film, acoustic emission sensors for embedded structural health monitoring systems [PDF]

open access: yes, 2010
Structural heath monitoring of engineering structures is of growing interest due to increasedcomplexity of such structures and the ability to schedule maintenance when it is needed thuspreventing unnecessary work or preventing failure. One such method
Mba, David   +5 more
core  

Characterization of acoustic emission signals from particulate filled thermoset and thermoplastic polymeric coatings in four point bend tests [PDF]

open access: yes, 2011
Four point bend tests were conducted on two previously characterized particulate filled thermoplastic andthermoset polymeric coatings, the acoustic emission (AE) method being utilized to monitor the damageprogress during the tests.
Mellor, B.G., Y. Xu, Xu, Y., B.G. Mellor
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Monitoring hydrodynamic bearings with acoustic emission and vibration analysis

open access: yes, 2012
Acoustic emission (AE) is one of many available technologies for condition health monitoring and diagnosis of rotating machines such as bearings. In recent years there have been many developments in the use of Acoustic Emission technology (AET) and ...
Mirhadizadeh, S. A.
core  

Limitation of Acoustic Emission for Identifying Seeded Defects in Gearboxes [PDF]

open access: yes, 2005
Acoustic Emissions (AE) is gaining ground as a Nonestructive Technique (NDT) for health diagnosis on rotating machinery. Vast opportunities exist for development of the AE technique on various forms of rotating machinery, including gearboxes.
Mba, David, Tan, Chee Keong
core   +1 more source

Characterization of Droplet Formation in Ultrasonic Spray Coating: Influence of Ink Formulation Using Phase Doppler Anemometry and Machine Learning

open access: yesAdvanced Materials Technologies, EarlyView.
This study explores how machine learning models, trained on small experimental datasets obtained via Phase Doppler Anemometry (PDA), can accurately predict droplet size (D32) in ultrasonic spray coating (USSC). By capturing the influence of ink complexity (solvent, polymer, nanoparticles), power, and flow rate, the model enables precise droplet control
Pieter Verding   +5 more
wiley   +1 more source

Application Research of Acoustic Emission Technology in Crack Monitoring of Column Cylinder

open access: yesGong-kuang zidonghua, 2011
In view of problem of fracture of cylinder in strength test and type test for column cylinder, the paper put forward a scheme of crack monitoring of column cylinder based on acoustic emission technology.
YAO Yu-wei
doaj  

Acoustic Emission

open access: yes, 2018
Acoustic Emission (AE) is an NDE technique that measures the elastic energy released in the form of acoustic waves in materials that undergo irreversible structure changes (e.g., plastic deformation, cracking, rupture). The emitted acoustic waves are captured by sensors attached to the material’s surface.
Tsangouri, Eleni, Angelis, Dimitrios
openaire   +2 more sources

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