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| Content Provider | IET Digital Library |
|---|---|
| Author | Sung, J. H. Jeong, J. S. |
| Abstract | Inversion layer technique can increase the centre frequency (f 0) and the −6 dB bandwidth of the ultrasound transducer without reducing thickness of active material. However, it suffers from the reduced −6 dB bandwidth when the centre frequency is increased more than 1.5f 0. A modified inversion technique is proposed and applied it to high-frequency intravascular ultrasound (IVUS) transducer. The performance was computationally verified by using finite element method (FEM) simulation. The proposed IVUS transducer consists of two sub-elements with each aperture size of 0.6 × 0.6 mm, and each sub-element has different types of inversion layer using PMN-PT and PZT-5H. The initial thickness of overall active material was designed for 40 MHz centre frequency and the FEM simulation showed that the centre frequency was increased by about 1.8f 0 maintaining the −6 dB fractional bandwidth compared with the conventional transducer. |
| Starting Page | 1003 |
| Ending Page | 1005 |
| Page Count | 3 |
| ISSN | 00135194 |
| Volume Number | 52 |
| e-ISSN | 1350911X |
| Issue Number | Issue 12, Jun (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/52/12 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2015.3831 |
| Journal | Electronics Letters |
| Publisher Date | 2016-05-03 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Biomedical Ultrasonics FEM Simulation Finite Element Analysis Finite Element Method Frequency 40 MHz Gain -6 DB High-frequency Intravascular Ultrasound Transducer Intravascular Ultrasound Imaging IVUS Transducer Measurement by Acoustic Technique Modified Inversion Layer Technique Numerical Approximation And Analysis Patient Diagnostic Method And Instrumentation PMN-PT PZT-5H Sonic And Ultrasonic Application Sonic And Ultrasonic Radiation Sonic And Ultrasonic Transducers Ultrasonic Imaging Ultrasonic Transducers |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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