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Special Issue "Piezoelectric Transducers"

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: 15 December 2019.

Special Issue Editor

Guest Editor
Dr. Ivan Felis Enguix

Centro Tecnológico Naval y del Mar—Marine Technology Centre (CTN), 30320 Fuente Álamo, Murcia, Spain
E-Mail
Phone: +34 968 197 521
Interests: applied physics; piezoelectric transducers; hydrophone calibration; underwater acoustics; bioacoustics; acoustic localization; marine environment monitoring; sensor networks; IoT; modelling and numerical simulation; energy efficiency; smart cities; pasive architecture

Special Issue Information

Dear Colleagues,

This specific volume of piezoelectric transducers aims to combine the advances of this technology from three points of view: the behavior of piezoelectric materials for transducers; the design and characterization of both the parts and the complete transducer; and the main applications of these piezoelectric transducers. Therefore, research articles, both basic and applied, theoretical and experimental, on any of these points of view are welcome. The present Special Issue in Sensors can be a reference and joining point for all researchers working in the field of piezoelectric transducers.

Topics are included but not limited to:

Piezoelectric theory: analytical and numerical solutions:

  • Behavior and properties of piezoelectric materials
  • New compositions of piezoelectric materials
  • Piezoelectric ceramic manufacturing

Transducer design and characterization:

  • Matching layer design
  • Backing design
  • Housing design
  • Full piezoelectric transducers design
  • Optimization of piezoelectric transducers
  • Development of piezoelectric transducers
  • Characterization techniques of piezoelectric transducers
  • Durability and variability of piezoelectric transducer response

Applications of piezoelectric transducers:

  • Underwater sensors (hydrophones)
  • Acoustic communications
  • Power harvesters
  • Medical sensors for monitoring and imaging
  • Medical transducers for energy deposition
  • Non-destructive testing
  • Ultrasonic wave characterization
  • Vibration testing
  • Control systems
  • Precision engineering
  • Resonators
  • Nonlinear and high-voltage applications

Dr. Ivan Felis Enguix
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (2 papers)

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Research

Open AccessArticle
Design and Analysis of a Magnetically Coupled Multi-Frequency Hybrid Energy Harvester
Sensors 2019, 19(14), 3203; https://doi.org/10.3390/s19143203
Received: 10 June 2019 / Revised: 11 July 2019 / Accepted: 18 July 2019 / Published: 20 July 2019
PDF Full-text (4904 KB) | HTML Full-text | XML Full-text
Abstract
The approach to improve the output power of piezoelectric energy harvester is one of the current research hotspots. In the case where some sources have two or more discrete vibration frequencies, this paper proposed three types of magnetically coupled multi-frequency hybrid energy harvesters [...] Read more.
The approach to improve the output power of piezoelectric energy harvester is one of the current research hotspots. In the case where some sources have two or more discrete vibration frequencies, this paper proposed three types of magnetically coupled multi-frequency hybrid energy harvesters (MHEHs) to capture vibration energy composed of two discrete frequencies. Electromechanical coupling models were established to analyze the magnetic forces, and to evaluate the power generation characteristics, which were verified by the experimental test. The optimal structure was selected through the comparison. With 2 m/s2 excitation acceleration, the optimal peak output power was 2.96 mW at 23.6 Hz and 4.76 mW at 32.8 Hz, respectively. The superiority of hybrid energy harvesting mechanism was demonstrated. The influences of initial center-to-center distances between two magnets and length of cantilever beam on output power were also studied. At last, the frequency sweep test was conducted. Both theoretical and experimental analyses indicated that the proposed MHEH produced more electric power over a larger operating bandwidth. Full article
(This article belongs to the Special Issue Piezoelectric Transducers)
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Open AccessArticle
Underwater Spiral Wave Sound Source Based on Phased Array with Three Transducers
Sensors 2019, 19(14), 3192; https://doi.org/10.3390/s19143192
Received: 4 June 2019 / Revised: 8 July 2019 / Accepted: 17 July 2019 / Published: 19 July 2019
PDF Full-text (9137 KB) | HTML Full-text | XML Full-text
Abstract
This paper realizes an underwater spiral wave sound source by using three omni-directional spherical transducers with three different phases. The pressure distribution of the sound field for a phased array is derived using the superposition theory of sound field. The generation of spiral [...] Read more.
This paper realizes an underwater spiral wave sound source by using three omni-directional spherical transducers with three different phases. The pressure distribution of the sound field for a phased array is derived using the superposition theory of sound field. The generation of spiral wave field is presented, the relationship between the performance of phased array sound field and the array parameters is analyzed, and also verified by the finite element method (FEM). A spiral wave sound source with three spherical piezoelectric ceramic transducers is then designed and fabricated based on FEM simulation, and the performance of the sound source is analyzed. Measurements are made in a reverberation pool, and the result shows that the fabricated spiral wave sound source is capable of producing a spiral sound wave. Under a frequency of 3.5 kHz, the phase directivity has a fluctuation of ±21°, and the amplitude directivity range is 4.3 dB, which verifies the realization of the spiral wave sound source. Full article
(This article belongs to the Special Issue Piezoelectric Transducers)
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