Modelling and Numerical Simulations of In-Air Reverberation Images for Fault Detection in Medical Ultrasonic Transducers: A Feasibility Study
Joint Authors
Staszewski, W. J.
Hashemiyan, Z.
Verma, P. K.
Kochański, W.
Boeff, M.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-25
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
A simplified two-dimensional finite element model which simulates the in-air reverberation image produced by medical ultrasonic transducers has been developed.
The model simulates a linear array consisting of 128 PZT-5A crystals, a tungsten-epoxy backing layer, an Araldite matching layer, and a Perspex lens layer.
The thickness of the crystal layer is chosen to simulate pulses centered at 4 MHz.
The model is used to investigate whether changes in the electromechanical properties of the individual transducer layers (backing layer, crystal layer, matching layer, and lens layer) have an effect on the simulated in-air reverberation image generated.
Changes in the electromechanical properties are designed to simulate typical medical transducer faults such as crystal drop-out, lens delamination, and deterioration in piezoelectric efficiency.
The simulations demonstrate that fault-related changes in transducer behaviour can be observed in the simulated in-air reverberation image pattern.
This exploratory approach may help to provide insight into deterioration in transducer performance and help with early detection of faults.
American Psychological Association (APA)
Kochański, W.& Boeff, M.& Hashemiyan, Z.& Staszewski, W. J.& Verma, P. K.. 2015. Modelling and Numerical Simulations of In-Air Reverberation Images for Fault Detection in Medical Ultrasonic Transducers: A Feasibility Study. Journal of Sensors،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1070197
Modern Language Association (MLA)
Kochański, W.…[et al.]. Modelling and Numerical Simulations of In-Air Reverberation Images for Fault Detection in Medical Ultrasonic Transducers: A Feasibility Study. Journal of Sensors No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1070197
American Medical Association (AMA)
Kochański, W.& Boeff, M.& Hashemiyan, Z.& Staszewski, W. J.& Verma, P. K.. Modelling and Numerical Simulations of In-Air Reverberation Images for Fault Detection in Medical Ultrasonic Transducers: A Feasibility Study. Journal of Sensors. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1070197
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1070197