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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Drinkwater, Bw
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2021Exploring high-frequency eddy-current testing for sub-aperture defect characterisation using parametric-manifold mappingcitations
- 2018Characterisation of carbon fibre-reinforced polymer composites through radon-transform analysis of complex eddy-current datacitations
- 2017Three-dimensional ultrasonic trapping of micro-particles in water with a simple and compact two-element transducercitations
- 2016Ultrasonic Array Imaging Through an Anisotropic Austenitic Steel Weld Using an Efficient Ray-tracing Algorithmcitations
- 2014Accurate modelling of anisotropic effects in austenitic stainless steel welds
- 2013Detection of Fibre Waviness Using Ultrasonic Array Scattering Datacitations
- 2013Imaging composite material using ultrasonic arrayscitations
- 2013Effective dynamic moduli and density of fiber-reinforced composites
- 2012Monte Carlo inversion of ultrasonic array data to map anisotropic weld propertiescitations
- 2012Autofocus imaging
- 2012Imaging composite material using ultrasonic arrayscitations
- 2012Effective dynamic constitutive parameters of acoustic metamaterials with random microstructurecitations
- 2010Ultrasonic condition monitoring using thin-film piezoelectric sensorscitations
- 2010Inspection of single crystal aerospace components with ultrasonic arrayscitations
- 2009Measurement of the ultrasonic nonlinearity of kissing bonds in adhesive jointscitations
- 2008Acoustic emission from pitting corrosion in stressed stainless steel platecitations
- 2006Oil film measurement in polytetrafluoroethylene-faced thrust pad bearings for hydrogenerator applicationscitations
- 2006Guided Wave Acoustic Emission from Fatigue Crack Growth in Aluminium Plate
- 2006Monitoring of lubricant film failure in a ball bearing using ultrasoundcitations
- 2006Intra-laminar cracking in CFRP laminatescitations
- 2006Global crack detection for aircraft monitoring using bispectral analysis
- 2006Intra-laminar cracking in CFRP laminates: observations and modelling ; Intra-laminar cracking in CFRP laminates:Observations and modellingcitations
- 2004The on-line measurement of lubricant film thickness for condition monitoringcitations
- 2003An ultrasonic wheel-array sensor and its application to aerospace structurescitations
- 2003The measurement of lubricant-film thickness using ultrasoundcitations
Places of action
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article
Ultrasonic condition monitoring using thin-film piezoelectric sensors
Abstract
Thin-film low-profile sensors have been investigated for ultrasonic condition monitoring. The sensors are made by growing a thin film of aluminium nitride onto the component to be monitored. The transducers can be engineered to operate in passive or active mode from 200 kHz to 400 MHz. New or existing applications based on ultrasonic pulse-echo techniques or acoustic emission testing can make use of the sensors, including monitoring of high-temperature plant or machinery. The sensors have been demonstrated on various component materials such as stainless steel, ferritic steel, aluminium, titanium and silicon carbide. The piezoelectric material used, aluminium nitride, has a very high Curie temperature so the devices can be used up to 600°C. Examples are presented of devices operating in pulse-echo and passive detection modes, which could be used for permanent monitoring of parts which would normally require maintenance outage in order to be inspected. In addition, because the typical thin-film transducers are only 8-40 μm thick, sensors can be placed in locations previously impossible to access. The operating frequency of the thin-film devices has been investigated by simulation using an equivalent circuit model.