Development of broadband high-frequency piezoelectric micromachined ultrasonic transducer array

XB Wang, LM He, YC Ma, WJ Liu, WJ Xu, JY Ren… - Sensors, 2021 - mdpi.com
Piezoelectric micromachined ultrasonic transducers (PMUT) are promising elements to
fabricate a two-dimensional (2D) array with a pitch small enough (approximately half …

[HTML][HTML] Mechanical and acoustic properties of a hybrid organic–inorganic perovskite, TMCM-CdCl3, with large piezoelectricity

TM Guo, FF Gao, ZG Li, Y Liu, MH Yu, W Li - APL Materials, 2020 - pubs.aip.org
Piezoelectric hybrid organic–inorganic perovskites have attracted significant attention due to
their outstanding piezoelectricity comparable to perovskite oxides. However, their elastic …

Ultrasonic attenuation of ceramic and inorganic materials using the through-transmission method

K Ono - Applied Sciences, 2022 - mdpi.com
Ultrasonic attenuation coefficients of ceramic and inorganic materials were determined for
the longitudinal and transverse wave modes. Sample materials included hard and soft …

High acoustic impedance and attenuation backing for high-frequency focused P (VDF-TrFE)-based transducers

S Toffessi Siewe, S Callé, F Vander Meulen, D Valente… - Sensors, 2023 - mdpi.com
Backing materials with tailored acoustic properties are beneficial for miniaturized ultrasonic
transducer design. Whereas piezoelectric P (VDF-TrFE) films are common elements in high …

[HTML][HTML] Inkjet-printing-derived lead-zirconate-titanate-based thick films for printed electronics

D Kuscer, S Drnovšek, F Levassort - Materials & Design, 2021 - Elsevier
We have investigated the processing of lead-zirconate-titanate-based thick films by inkjet
printing Pb (Zr 0.53 Ti 0.47) 0.98 Nb 0.02 O 3 with a 6 mol% excess of PbO nanosized …

[HTML][HTML] Research on the sensor for detection of carburized case depth based on nonlinear ultrasound

Y Tang, G Zhang, H Mao, J Ren, Z Huang, X Li, Q Li - Results in Physics, 2022 - Elsevier
Carburized case depth may be characterized by using nonlinear ultrasound. However, the
excitation and receiving sensors are difficult to control in the same conditions in each …

Pulse-echo acoustic properties evaluation method using high-frequency transducer

Z Li, Z Han, X Jian, W Shao, Y Jiao… - … Science and Technology, 2020 - iopscience.iop.org
The quantitative measurement of acoustic properties is indispensable for many applications.
The realization of devices for the evaluation of acoustic properties with higher accuracy and …

Optimal design of ultrasonic transducer based on multi-layer backing with adjustable impedance

C Hou, Z Li, C Fei, X Wei, Y Yang, Y Wang, Y Quan… - Ceramics …, 2024 - Elsevier
Ultrasonic transducers, especially used in medical imaging, strike a balance between
sensitivity and bandwidth to yield high-quality images. This challenge centers on the optimal …

Numerical characterization of a piezoelectric composite with hollow metal fillers including new figures of merit, pore shape effects, and distinct piezoceramic types

A Nasedkin, ME Nassar - International Journal of Mechanics and Materials …, 2022 - Springer
This paper focuses on the numerical analysis of the properties of porous piezoelectric
composites with metal-doped pore surfaces and assesses their effectiveness as …

Dual-Use Strain Sensors for Acoustic Emission and Quasi-Static Bending Measurements

J Stiefvater, Y Kang, A de Clerck, S Mao, N Jones… - Sensors, 2024 - mdpi.com
In this paper, a MEMS piezoresistive ultrathin silicon membrane-based strain sensor is
presented. The sensor's ability to capture an acoustic emission signal is demonstrated using …