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Crystals
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Piezoelectric Sensors Application
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Piezoelectric Sensors Application

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Materials for Energy Applications".

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 9669

Special Issue Editor

Dr. Weili Deng

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
Interests: functional materials; flexible electronics; piezoelectric sensors; piezoresistive sensors; healthcare monitoring
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Piezoelectric sensors are devices that use the piezoelectric effect to measure the electric potential caused by the application of a mechanical force to a piezoelectric material. The combination of piezoelectric materials with nanotechnology, such as nanowires, nanosheets or nanoplates, allows piezoelectric sensors and electronic microchips mutually compatible, flexible and wearable, and can simultaneously realize various digital, electronic and energy storage functions. Due to their highly efficient electromechanical conversion, easy implementation, and self-powering nature, these devices allow a large number of innovative medical applications in areas such as active sensing, electrical stimulation therapy and passive bio-mechanical energy harvesting of the human body. In the past decade, the piezoelectric sensors have experienced rapid progress and attracted widespread interest. The present Special Issue on “Piezoelectric sensors” may become a status reports summarizing the progress achieved in the last five years.

Dr. Weili Deng
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 submissions that pass pre-check are 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. Crystals is an international peer-reviewed open access monthly 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 2600 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.

Keywords

  • Piezoelectric sensor
  • Self-powered sensing
  • Electromechanical coupling

Published Papers (5 papers)

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Editorial

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2 pages, 168 KiB  
Editorial
Piezoelectric Materials Design for High-Performance Sensing
by Weili Deng, Long Jin and Weiqing Yang
Crystals 2023, 13(7), 1063; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst13071063 - 05 Jul 2023
Viewed by 774
Abstract
Piezoelectric materials can realize the mutual conversion of electrical energy and mechanical energy, and are widely used in electronic devices such as piezoelectric filters, micro-displacers, actuators, and sensors, which have crucial uses in the fields of information and communication, biomedicine, military defense, etc [...] Read more.
Piezoelectric materials can realize the mutual conversion of electrical energy and mechanical energy, and are widely used in electronic devices such as piezoelectric filters, micro-displacers, actuators, and sensors, which have crucial uses in the fields of information and communication, biomedicine, military defense, etc [...] Full article
(This article belongs to the Special Issue Piezoelectric Sensors Application)

Research

Jump to: Editorial

10 pages, 4803 KiB  
Article
High-Performance Piezoelectric Characteristics of Sm Substituted Pb(Ni,Nb)O3-Pb(Zr,Ti)O3-Pb(Mg,W)O3 System Ceramics for Ultrasonic Transducer Application
by Sujin Kang, Jonghyeon Lee, Juhyun Yoo, Sun A. Whang, Suho Lee, Seonghoon Kee, Inho Im and Changwoo Oh
Crystals 2022, 12(5), 738; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst12050738 - 20 May 2022
Cited by 4 | Viewed by 1628
Abstract
In this paper, in order to develop composition ceramics for an acoustic emission sensor application for nondestructive testing, Pb(Ni,Nb2/3)O3-Pb(Zr,Ti)O3-Pb(Mg,W)O3 [PNN-PZT-PMW] system ceramics were manufactured by conventional mixed oxide method using Li2CO3 and CaCO [...] Read more.
In this paper, in order to develop composition ceramics for an acoustic emission sensor application for nondestructive testing, Pb(Ni,Nb2/3)O3-Pb(Zr,Ti)O3-Pb(Mg,W)O3 [PNN-PZT-PMW] system ceramics were manufactured by conventional mixed oxide method using Li2CO3 and CaCO3 as sintering aids. Their microstructural, dielectric and piezoelectric properties were also investigated. At x = 0.0075 Sm, the substituted specimen sintered at 980 (°C), and high values of piezoelectric properties appeared: the dielectric constant (εr) of 2824, piezoelectric coefficient d33 of 630 [pC/N], planar electromechanical coupling factor kp of 0.665, piezoelectric voltage constant g33 of 25.2 [mV.m/N], and high Curie temperature (Tc) = 270 (°C), respectively. These values were applicable for devices such as acoustic emission sensor and ultrasonic transducer. Full article
(This article belongs to the Special Issue Piezoelectric Sensors Application)
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16 pages, 44489 KiB  
Article
Characterization of Thickness Loss in a Storage Tank Plate with Piezoelectric Wafer Active Sensors
by Wencai Liu, Jianchun Fan and Jin Yang
Crystals 2022, 12(1), 92; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst12010092 - 10 Jan 2022
Cited by 1 | Viewed by 1603
Abstract
In terms of the structural health inspection of storage tanks by ultrasonic guided wave technology, many scholars are currently focusing on the tanks’ floor and walls, while little research has been conducted on storage tank roofs. However, the roof of a storage tank [...] Read more.
In terms of the structural health inspection of storage tanks by ultrasonic guided wave technology, many scholars are currently focusing on the tanks’ floor and walls, while little research has been conducted on storage tank roofs. However, the roof of a storage tank is prone to corrosion because of its complex structure and unique working environment. For this purpose, this paper proposes a reflection/transmission signal amplitude ratio (RTAR) coefficient method for corrosion depth assessment. We studied the relationship between the RTAR coefficient, the corrosion depth, and the guided wave frequency to establish a depth assessment model. More importantly, unlike the traditional reflection coefficient method, the characteristics of guided wave signals, including the propagation and attenuation, are introduced in this model for accurate assessment. To eliminate the interference of residual vibration and improve the detection accuracy of defects, we built a corrosion detection system by using piezoelectric sensors and carried out field tests to verify the performance of the proposed method. We demonstrate that corrosion defects with a minimum depth of 0.2 mm can be quantitatively evaluated. Full article
(This article belongs to the Special Issue Piezoelectric Sensors Application)
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Graphical abstract

14 pages, 5696 KiB  
Article
Surface Acoustic Wave-Based Flexible Piezocomposite Strain Sensor
by Rishikesh Srinivasaraghavan Govindarajan, Eduardo Rojas-Nastrucci and Daewon Kim
Crystals 2021, 11(12), 1576; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst11121576 - 17 Dec 2021
Cited by 14 | Viewed by 3036
Abstract
A surface acoustic wave (SAW), device composed of polymer and ceramic fillers, exhibiting high piezoelectricity and flexibility, has a wide range of sensing applications in the aerospace field. The demand for flexible SAW sensors has been gradually increasing due to their small size, [...] Read more.
A surface acoustic wave (SAW), device composed of polymer and ceramic fillers, exhibiting high piezoelectricity and flexibility, has a wide range of sensing applications in the aerospace field. The demand for flexible SAW sensors has been gradually increasing due to their small size, wireless capability, low fabrication cost, and fast response time. This paper discusses the structural, thermal, and electrical properties of the developed sensor, based on different micro- and nano-fillers, such as lead zirconate titanate (PZT), calcium copper titanate (CCTO), and carbon nanotubes (CNTs), along with polyvinylidene fluoride (PVDF) as a polymer matrix. The piezocomposite substrate of the SAW sensor is fabricated using a hot press, while interdigital transducers (IDTs) are deposited through 3D printing. The piezoelectric properties are also enhanced using a non-contact corona poling technique under a high electric field to align the dipoles. Results show that the developed passive strain sensor can measure mechanical strains by examining the frequency shifts of the detected wave signals. Full article
(This article belongs to the Special Issue Piezoelectric Sensors Application)
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10 pages, 2367 KiB  
Article
Crystal Structure and Electrical Characteristics of (0.965)(Li0.03(Na0.5K0.5)0.97)(Nb1−xSbx)O3−0.035(Bi0.5Na0.5)0.9(Sr)0.1ZrO3 Ceramics Doped with CuO, B2O3, and ZnO
by Juhyun Yoo and Sujin Kang
Crystals 2021, 11(8), 859; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst11080859 - 24 Jul 2021
Cited by 2 | Viewed by 1580
Abstract
Recently, the need has arisen to enhance the piezoelectric properties and temperature stability of (Na,K)NbO3 system ceramics. The (0.965)(Li0.03(Na0.5K0.5)0.97)(Nb1−xSbx)O3−0.035 (Bi0.5Na0.5)0.9(Sr)0.1ZrO3 ceramics [...] Read more.
Recently, the need has arisen to enhance the piezoelectric properties and temperature stability of (Na,K)NbO3 system ceramics. The (0.965)(Li0.03(Na0.5K0.5)0.97)(Nb1−xSbx)O3−0.035 (Bi0.5Na0.5)0.9(Sr)0.1ZrO3 ceramics were newly manufactured using the sintering aids of CuO, B2O3, and ZnO as a function of antimony substitution, and the their crystal structure and electrical characteristics were analyzed. The grain size was apparently refined as the amount of antimony increased. The dielectric constant was enhanced and Curie temperature was decreased due to the content of the antimony substitution. The x = 0.07 sample sintered at 1060 °C presented the best electrical characteristics, which were bulk density = 4.488 g/cm3, piezoelectric constant d33 = 330 pC/N, electromechanical coupling factor kp = 0.427, mechanical coupling factor Qm = 61, and dielectric constant εr = 2521. We believe that the x = 0.07 sample is the best material for piezoelectric speakers. Full article
(This article belongs to the Special Issue Piezoelectric Sensors Application)
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