Design, fabrication, and characterization of 1-3 piezoelectric composite air-coupled ultrasonic transducers with micro-membrane filter matching layer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU152643" target="_blank" >RIV/00216305:26620/24:PU152643 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S092442472400949X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S092442472400949X?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sna.2024.115955" target="_blank" >10.1016/j.sna.2024.115955</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Design, fabrication, and characterization of 1-3 piezoelectric composite air-coupled ultrasonic transducers with micro-membrane filter matching layer

Popis výsledku v původním jazyce

Air-coupled ultrasonic transducers are widely used in various fields of nondestructive material characterization. This paper presents the fabrication and performance characterization of 1-3 piezoelectric composite air-coupled ultrasonic transducers operating at frequencies ranging from 400 kHz to 600 kHz. The transducers are fabricated using a dice-and-fill method with PZT-5 as the active material. A double-layer matching strategy is employed, utilizing hollow glass microsphere filled epoxy resin as the first matching and bonding layer. Additionally, micro- membrane filters with different pore sizes are used as the second matching layer. Thermoplastic adhesive TPU is utilized to bind the micro-membrane filter and the first matching layer. Due to the low acoustic impedance of the hollow glass microsphere filled epoxy resin and micro-membrane filter, acoustic impedance mismatch is reduced. Finite element simulation is used to determine the optimal ceramic volume fraction and ceramic pillar height of the 1-3 piezoelectric composites. When the pore size of the micro-membrane filter is 0.8 mu m, the transducer achieves the lowest two-way insertion loss of-56.86 dB and the highest-6 dB bandwidth of 15.6 %, making it feasible for through mode applications.

Název v anglickém jazyce

Design, fabrication, and characterization of 1-3 piezoelectric composite air-coupled ultrasonic transducers with micro-membrane filter matching layer

Popis výsledku anglicky

Air-coupled ultrasonic transducers are widely used in various fields of nondestructive material characterization. This paper presents the fabrication and performance characterization of 1-3 piezoelectric composite air-coupled ultrasonic transducers operating at frequencies ranging from 400 kHz to 600 kHz. The transducers are fabricated using a dice-and-fill method with PZT-5 as the active material. A double-layer matching strategy is employed, utilizing hollow glass microsphere filled epoxy resin as the first matching and bonding layer. Additionally, micro- membrane filters with different pore sizes are used as the second matching layer. Thermoplastic adhesive TPU is utilized to bind the micro-membrane filter and the first matching layer. Due to the low acoustic impedance of the hollow glass microsphere filled epoxy resin and micro-membrane filter, acoustic impedance mismatch is reduced. Finite element simulation is used to determine the optimal ceramic volume fraction and ceramic pillar height of the 1-3 piezoelectric composites. When the pore size of the micro-membrane filter is 0.8 mu m, the transducer achieves the lowest two-way insertion loss of-56.86 dB and the highest-6 dB bandwidth of 15.6 %, making it feasible for through mode applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20200 - Electrical engineering, Electronic engineering, Information engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

SENSORS AND ACTUATORS A-PHYSICAL

ISSN

1873-3069

e-ISSN

—

Svazek periodika

379

Číslo periodika v rámci svazku

115955

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

„“-„“

Kód UT WoS článku

001338873500001

EID výsledku v databázi Scopus

2-s2.0-85206505932