Design of Piezoelectric Ultrasonic Transducer Based on Doped PDMS
The performance of the ultrasonic transducer will directly affect the accuracy of ultrasonic experimental measurement. Therefore, in order to meet the requirements of a wide band, a kind of annular 2-2-2 piezoelectric composite is proposed based on doped PDMS. In this paper, the transducer structure...
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| Format: | Article |
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MDPI AG
2021-04-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/9/3123 |
| _version_ | 1797535635645399040 |
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| author | Ran Yang Wenyi Liu Wanjia Gao Dingwei Kang |
| author_facet | Ran Yang Wenyi Liu Wanjia Gao Dingwei Kang |
| author_sort | Ran Yang |
| collection | DOAJ |
| description | The performance of the ultrasonic transducer will directly affect the accuracy of ultrasonic experimental measurement. Therefore, in order to meet the requirements of a wide band, a kind of annular 2-2-2 piezoelectric composite is proposed based on doped PDMS. In this paper, the transducer structure consisted of PZT-5A piezoelectric ceramics and PDMS doped with 3 wt.% Al<sub>2</sub>O<sub>3</sub>:SiO<sub>2</sub> (1:6) powder, which constituted the piezoelectric composite. MATLAB and COMSOL software were used for simulation. Meanwhile, the electrode materials were selected. Then, the performance of the designed annular 2-2-2 ultrasonic transducer was tested. The simulation results show that when the polymer phase material of the piezoelectric ultrasonic transducer is doped PDMS, the piezoelectric phase and the ceramic substrate account for 70% of the total volume, the polymer phase accounts for 30% of the total volume, and the maximum frequency band width can reach 90 kHz. The experimental results show that the maximum bandwidth of −3 dB can reach 104 kHz when the frequency is 160 kHz. The results of the electrode test show that the use of Cu/Ti electrode improves the electrical conductivity of the single electrode. In this paper, the annular 2-2-2 transducer designed in the case of small volume had the characteristics of a wide frequency band, which was conducive to the miniaturization and integration of the transducer. Therefore, we believe that the annular 2-2-2 piezoelectric composite has broad application prospects. |
| first_indexed | 2024-03-10T11:48:12Z |
| format | Article |
| id | doaj.art-75ad655c83c84dfca274f70d58ea7ca4 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T11:48:12Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-75ad655c83c84dfca274f70d58ea7ca42023-11-21T17:55:15ZengMDPI AGSensors1424-82202021-04-01219312310.3390/s21093123Design of Piezoelectric Ultrasonic Transducer Based on Doped PDMSRan Yang0Wenyi Liu1Wanjia Gao2Dingwei Kang3Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaThe performance of the ultrasonic transducer will directly affect the accuracy of ultrasonic experimental measurement. Therefore, in order to meet the requirements of a wide band, a kind of annular 2-2-2 piezoelectric composite is proposed based on doped PDMS. In this paper, the transducer structure consisted of PZT-5A piezoelectric ceramics and PDMS doped with 3 wt.% Al<sub>2</sub>O<sub>3</sub>:SiO<sub>2</sub> (1:6) powder, which constituted the piezoelectric composite. MATLAB and COMSOL software were used for simulation. Meanwhile, the electrode materials were selected. Then, the performance of the designed annular 2-2-2 ultrasonic transducer was tested. The simulation results show that when the polymer phase material of the piezoelectric ultrasonic transducer is doped PDMS, the piezoelectric phase and the ceramic substrate account for 70% of the total volume, the polymer phase accounts for 30% of the total volume, and the maximum frequency band width can reach 90 kHz. The experimental results show that the maximum bandwidth of −3 dB can reach 104 kHz when the frequency is 160 kHz. The results of the electrode test show that the use of Cu/Ti electrode improves the electrical conductivity of the single electrode. In this paper, the annular 2-2-2 transducer designed in the case of small volume had the characteristics of a wide frequency band, which was conducive to the miniaturization and integration of the transducer. Therefore, we believe that the annular 2-2-2 piezoelectric composite has broad application prospects.https://www.mdpi.com/1424-8220/21/9/31232-2 piezoelectric compositesPDMSultrasonic waveultrasonic transducer |
| spellingShingle | Ran Yang Wenyi Liu Wanjia Gao Dingwei Kang Design of Piezoelectric Ultrasonic Transducer Based on Doped PDMS Sensors 2-2 piezoelectric composites PDMS ultrasonic wave ultrasonic transducer |
| title | Design of Piezoelectric Ultrasonic Transducer Based on Doped PDMS |
| title_full | Design of Piezoelectric Ultrasonic Transducer Based on Doped PDMS |
| title_fullStr | Design of Piezoelectric Ultrasonic Transducer Based on Doped PDMS |
| title_full_unstemmed | Design of Piezoelectric Ultrasonic Transducer Based on Doped PDMS |
| title_short | Design of Piezoelectric Ultrasonic Transducer Based on Doped PDMS |
| title_sort | design of piezoelectric ultrasonic transducer based on doped pdms |
| topic | 2-2 piezoelectric composites PDMS ultrasonic wave ultrasonic transducer |
| url | https://www.mdpi.com/1424-8220/21/9/3123 |
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