| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Zhang, Jie
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2022Sizing limitations of ultrasonic array images for non-sharp defects and their impact on structural integrity assessmentscitations
- 2020Data fusion of multi-view ultrasonic imaging for characterisation of large defectscitations
- 2020Effect of crack-like defects on the fracture behaviour of Wire + Arc additively manufactured nickel-base Alloy 718citations
- 2012Monte Carlo inversion of ultrasonic array data to map anisotropic weld propertiescitations
- 2012Autofocus imaging
- 2010Ultrasonic condition monitoring using thin-film piezoelectric sensorscitations
- 2006Monitoring of lubricant film failure in a ball bearing using ultrasoundcitations
Places of action
| Organizations | Location | People |
|---|
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.