Air-Borne Ultrasonic Transducers Based on Cross-Linked Polypropylene Ferro/Piezoelectrets

被引：3

作者：

Xue, Yuan ^{[1
,2
]}

Li, Shuang ^{[3
]}

Zhang, Mi ^{[4
]}

Ruan, Zehai ^{[4
]}

Wu, Kai ^{[5
]}

Cao, Jianglang ^{[1
,2
]}

Li, Guanglin ^{[1
,2
]}

Zhang, Xiaoqing ^{[4
]}

Fang, Peng ^{[1
,2
]}

机构：

[1] Shenzhen Inst Adv Technol, CAS Key Lab Human Machine Intelligence Synergy Sy, Shenzhen 518055, Peoples R China

[2] Shenzhen Engn Lab Neural Rehabil Technol, Shenzhen 518055, Peoples R China

[3] Shenzhen Longhua Dist Peoples Hosp, Dept Ultrason, Shenzhen 518109, Peoples R China

[4] Tongji Univ, Sch Phys Sci & Engn, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China

[5] South China Univ Technol, Sch Biomed Sci & Engn, Guangzhou 511442, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2022年 / 22卷 / 15期

基金：

中国国家自然科学基金;

关键词：

Transducers; Films; Acoustics; Impedance; Ultrasonic transducers; Sensors; Integrated circuit modeling; Ultrasonic; film transducer; flexible; ferroelectret; piezoelectret; cross-linked polypropylene; FILM-TRANSDUCERS; FABRICATION; POLYMER;

D O I：

10.1109/JSEN.2022.3186915

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Air-borne ultrasonic transducers based on irradiated cross-linked polypropylene (IXPP) ferro/piezoelectret films, which exhibit a high longitudinal piezoelectric activity and a low acoustic impedance, were analyzed, fabricated, and measured in this work. Equivalent circuits and finite element models for IXPP film transducers were built to predict and confirm the transducer performances. Circular IXPP transducers which are 20 mm in diameter show a maximum radiated pressure of 3.2 Pa (104 dB) driven by 100 Vrms and a receiving sensitivity of 8 mV/Pa when resonance occurs at around 45 kHz, both at a distance of 60 cm, as confirmed by analytical and numerical models. Pulse-echo response of the transducers was obtained from theoretical calculation and simulation as well, indicating a -6 dB bandwidth of around 25% is achieved. Besides, the directivity patterns of IXPP film transducers at various frequencies were measured and analyzed. This work may introduce a novel material for flexible ultrasonic transducers with a demand of high sensitivity.

引用

页码：14806 / 14814

页数：9

共 38 条

[1] Ferroelectrets: Soft electroactive foams for transducers [J].

Bauer, S ;

Gerhard-Multhaupt, R ;

Sessler, GM .

PHYSICS TODAY, 2004, 57 (02) :37-43

[2] KLM model for lossy piezoelectric transducers [J].

Castillo, M ;

Acevedo, P ;

Moreno, E .

ULTRASONICS, 2003, 41 (08) :671-679

[3] Property Assessment and Application Exploration for Layered Polytetrafluoroethylene Piezoelectrets [J].

Chen, Li ;

Cao, Jianglang ;

Li, Guanglin ;

Fang, Peng ;

Gong, Xiangshan ;

Zhang, Xiaoqing .

IEEE SENSORS JOURNAL, 2019, 19 (23) :11262-11271

[4] Relaxor ferroelectric polymer exhibits ultrahigh electromechanical coupling at low electric field [J].

Chen, Xin ;

Qin, Hancheng ;

Qian, Xiaoshi ;

Zhu, Wenyi ;

Li, Bo ;

Zhang, Bing ;

Lu, Wenchang ;

Li, Ruipeng ;

Zhang, Shihai ;

Zhu, Lei ;

Dos Santos, Fabrice Domingues ;

Bernholc, J. ;

Zhang, Q. M. .

SCIENCE, 2022, 375 (6587) :1418-+

[5] CMOS Ultrasonic Receiver With On-Chip Analog-to-Digital Front End for High-Resolution Ultrasound Imaging Systems [J].

Cheng, Teng-Chuan ;

Tsai, Tsung-Heng .

IEEE SENSORS JOURNAL, 2016, 16 (20) :7454-7463

[6] Implementation of ultrasonic touchless interactive panel using the polymer-based CMUT array [J].

Chiu, Te-I ;

Deng, Hsu-Cheng ;

Chang, Shu-Yuang ;

Luo, Shi-Bing .

2009 IEEE SENSORS, VOLS 1-3, 2009, :625-630

[7] Design of Acoustic Lenses for Ultrasonic Human-Computer Interaction [J].

Dahl, Tobias ;

Ealo, Joao L. ;

Papakonstantinou, Konstantinos ;

Pazos, Jhon F. .

2011 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS), 2011, :64-67

[8] Generation and detection of broadband airborne ultrasound with cellular polymer ferroelectrets [J].

Dansachmueller, Mario ;

Minev, Ivan ;

Bartu, Petr ;

Graz, Ingrid ;

Arnold, Nikita ;

Bauer, Siegfried .

APPLIED PHYSICS LETTERS, 2007, 91 (22)

[9] ULTRASONIC AIR-COUPLED INSPECTION OF TEXTILE MATERIALS USING FERROELECTRET-BASED PHASED ARRAYS [J].

Ealo, J. ;

Camacho, J. ;

Seco, F. ;

Fritsch, C. .

REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 29A AND 29B, 2010, 1211 :933-940

[10] Broadband EMFi-based transducers for ultrasonic air applications [J].

Ealo, Joao L. ;

Seco, Fernando ;

Jimenez, Antonio R. .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2008, 55 (04) :919-929

← 1 2 3 4 →