Name
Title | ||
|---|---|---|
Design, Fabrication, and Evaluation of Multifocal Point Transducer for High-Frequency Ultrasound Applications. |
Abstract | ||
|---|---|---|
The present study illustrates the design, fabrication, and evaluation of a novel multifocal point (MFP) transducer based on polyvinylidene fluoride (PVDF) film for high-frequency ultrasound application. The fabricated MFP surface was press-focused using a computer numerical control (CNC) machining tool-customized multi-spherical pattern object. The multi-spherical pattern has five spherical surfaces with equal area and connected continuously to have the same energy level at focal points. Center points of these spheres are distributed in a linear pattern with 1 mm distance between each two points. The radius of these spheres increases steadily from 10 mm to 13.86 mm. The designed MFP transducer had a center frequency of 50 MHz and a -6 dB bandwidth of 68%. The wire phantom test was conducted to study and demonstrate the advantages of this novel design. The obtained results for MFP transducer revealed a significant increase (4.3 mm) of total focal zone in the near-field and far-field area compared with 0.48 mm obtained using the conventional single focal point transducer. Hence, the proposed method is promising to fabricate MFP transducers for deeper imaging depth applications. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.3390/s19030609 | SENSORS |
Keywords | Field | DocType |
ultrasonic transducer,multifocal point transducer,high-frequency applications,high-frequency ultrasound transducer,PVDF focused transducer | Transducer,Ultrasonic sensor,Focal point,Cardinal point,Imaging phantom,Machining,Electronic engineering,Center frequency,Acoustics,Engineering,Fabrication | Journal |
Volume | Issue | ISSN |
19 | 3.0 | 1424-8220 |
Citations | PageRank | References |
0 | 0.34 | 4 |
Authors | ||
10 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Thanh Phuoc Nguyen | 1 | 0 | 0.34 |
| Nguyen Thanh Phong Truong | 2 | 0 | 0.34 |
| Nhat Quang Bui | 3 | 2 | 0.91 |
| Van Tu Nguyen | 4 | 0 | 0.68 |
| Giang Hoang | 5 | 0 | 0.34 |
| Jaeyeop Choi | 6 | 0 | 0.68 |
| Thi Tuong Vy Phan | 7 | 0 | 0.34 |
| Van Hiep Pham | 8 | 0 | 0.68 |
| Byung-Gak Kim | 9 | 0 | 1.01 |
| JungHwan Oh | 10 | 520 | 44.87 |