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Micromachines
Special Issues
Piezoelectric Micro-/Nano Systems in China
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Piezoelectric Micro-/Nano Systems in China

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A：Physics".

Deadline for manuscript submissions: closed (29 February 2024) | Viewed by 4418

Special Issue Editors

Dr. Yunlai Shi

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Guest Editor
State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Interests: piezoelectric actuators; piezoelectric motors and their applications
Dr. Weidong Liu

E-Mail Website
Guest Editor
College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
Interests: piezoelectric actuators; mechanics of smart materials and structures; applications of functional materials and structures on morphing wings and blades
Dr. Qiaosheng Pan

E-Mail Website
Guest Editor
School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
Interests: piezoelectric actuators and motors
Dr. Jun Zhang

E-Mail Website
Guest Editor
College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, China
Interests: driving and control of piezoelectric actuators; piezoelectric motors and their applications
Dr. Yin Wang

E-Mail Website
Guest Editor
College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, China
Interests: piezoelectric actuators and their applications; ultrasonic consolidation
Dr. Jun Huang

E-Mail Website
Guest Editor
Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
Interests: design of piezoelectric actuator; simulation of fluid-structure coupling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the rapid development of the cross-fusion of science, the application of piezoelectric systems has become increasingly prominent. Given their simple design, minimal moving parts, lack of requirement for lubrication to operate and high reliability characteristics, a number of piezoelectric devices are used for their precise control and efficiency in a wide variety of industrial, automotive, medical, aviation, aerospace and consumer electronics applications. In addition, China has become a major contributor in this field in terms of its contribution to the development, design, production and innovative application of piezoelectric systems. To further advance piezoelectric technology and expand its applications, this Special Issue seeks to showcase research papers, communications and review articles by Chinese scholars that focus on piezoelectric actuators, piezoelectric motors, piezoelectric pumps, piezoelectric materials, piezoelectric micro jets, piezoelectric energy harvesting, ultrasonic transducers and ultrasonic-aided machining. Advances and trends in new designs, mathematical modeling, computer simulations, optimization techniques, experiments and new applications are very welcome.

Dr. Yunlai Shi
Dr. Weidong Liu
Dr. Qiaosheng Pan
Dr. Jun Zhang
Dr. Yin Wang
Dr. Jun Huang
Guest Editors

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. Micromachines 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 actuator
  • piezoelectric motor
  • piezoelectric pump
  • piezoelectric transducer
  • piezoelectric energy harvesting
  • piezoelectric stacks
  • piezoelectric jets
  • unimorph
  • bimorph
  • amplified piezoelectric actuator
  • inchworm actuator
  • inertial actuator
  • ultrasonic actuator
  • ultrasonic motor
  • ultrasonic consolidation

Published Papers (3 papers)

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Research

12 pages, 3566 KiB  
Article
Resonant-Type Piezoelectric Pump Driven by Piezoelectric Stacks and a Rhombic Micro Displacement Amplifier
by Chunli Zhu, Xiaolong Shu, Dongcai Liu, Xianghan Du, Lexi Li and Qiaosheng Pan
Micromachines 2023, 14(9), 1764; https://doi.org/10.3390/mi14091764 - 13 Sep 2023
Viewed by 931
Abstract
To obtain a high flow rate, a resonant-type piezoelectric pump is designed, fabricated, and studied in this paper. The pump consists of four parts: a piezoelectric vibrator, a pump chamber, a check valve and a compressible space. The designed piezoelectric vibrator is composed [...] Read more.
To obtain a high flow rate, a resonant-type piezoelectric pump is designed, fabricated, and studied in this paper. The pump consists of four parts: a piezoelectric vibrator, a pump chamber, a check valve and a compressible space. The designed piezoelectric vibrator is composed of a rhombic micro displacement amplifier, counterweight blocks and two piezoelectric stacks with low-voltage drive and a large output displacement. ANSYS software (Workbench 19.0) simulation results show that at the natural frequency of 946 Hz, the designed piezoelectric vibrator will produce the maximum output displacement. The bilateral deformation is symmetrical, and the phase difference is zero. Frequency, voltage, and backpressure characteristics of the piezoelectric pump are investigated. The experimental results show that at a certain operating frequency, the flow rate and the backpressure of the piezoelectric pump both increase with the increase in voltage. When the applied voltage is 150 Vpp, the flow rate reaches a peak of 367.48 mL/min at 720 Hz for one diaphragm pump, and reaches a peak of 700.15 mL/min at 716 Hz for two diaphragm pumps. Full article
(This article belongs to the Special Issue Piezoelectric Micro-/Nano Systems in China)
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19 pages, 10556 KiB  
Article
Study of the Power Generation Performance of Impact Piezoelectric Energy Capture Devices
by Xiaochao Tian, Jinlong Liu, Jun Hou, Houjun Gai, Jie Yang and Zhenwen Sun
Micromachines 2023, 14(5), 1013; https://doi.org/10.3390/mi14051013 - 8 May 2023
Cited by 3 | Viewed by 1539
Abstract
In order to solve the problem of conventional energy shortages, a non-resonant impact piezoelectric energy capture device using a (polyvinylidene fluoride) piezoelectric film at low frequency is proposed, and related theoretical analysis and experimental studies are conducted. The device has a simple internal [...] Read more.
In order to solve the problem of conventional energy shortages, a non-resonant impact piezoelectric energy capture device using a (polyvinylidene fluoride) piezoelectric film at low frequency is proposed, and related theoretical analysis and experimental studies are conducted. The device has a simple internal structure, is green and easy to miniaturize, and is capable of harvesting energy at low frequencies to supply energy to micro and small electronic devices. First, to verify the feasibility of the device, the structure of the experimental device is modeled and dynamically analyzed. Then the modal, stress–strain, and output voltage of the piezoelectric film are simulated and analyzed using COMSOL Multiphysics simulation software. Finally, the experimental prototype is built according to the model, and the experimental platform is constructed to test the relevant performance. The experimental results show that the output power produced by the capturer varies within a certain range when the capturer is excited externally. With an external excitation force of 30 N, a piezoelectric film bending amplitude of 60°, and a piezoelectric film size of 45 × 80 mm, the resulting output power voltage is 21.69 V, the output current is 0.07 mA, and the output power is 1.5176 mW. This experiment verifies the feasibility of the energy capturer and provides a new idea for powering electronic components. Full article
(This article belongs to the Special Issue Piezoelectric Micro-/Nano Systems in China)
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13 pages, 6003 KiB  
Article
High Step-Up Ratio DC-AC Converter Using Fourth-Order LCLC Resonant Circuit for Ultrasonic Fingerprint-Sensor Drivers
by Wei Liu, Yunlai Shi, Zhijun Sun, Li Zhang and Qian Zhang
Micromachines 2023, 14(2), 393; https://doi.org/10.3390/mi14020393 - 4 Feb 2023
Viewed by 1388
Abstract
Ultrasonic fingerprint sensors are becoming more widely used in thick or flexible displays. In order to better identify fingerprint information, ultrasonic sensors need to generate more ultrasonic energy, which can be transmitted to the display surface through media with higher acoustic impedance. In [...] Read more.
Ultrasonic fingerprint sensors are becoming more widely used in thick or flexible displays. In order to better identify fingerprint information, ultrasonic sensors need to generate more ultrasonic energy, which can be transmitted to the display surface through media with higher acoustic impedance. In this paper, a DC-AC converter with a high lift ratio was proposed to enhance the transmission energy of the ultrasonic fingerprint sensor, thus helping to improve the identification. The converter comprises a full-bridge inverter and two LC resonant circuits. The introduction of an additional LC resonant circuit into the traditional Class-D LC resonant converter effectively increases the boost ratio of the proposed converter from 5 to 22. When used as a part of the ultrasonic fingerprint sensing system, the proposed converter can amplify the 20-V low-voltage DC required to drive the piezoelectric organic film to 376 V high-voltage AC. The voltage of the wave received from this new driver is equal to 970 mV, which greatly exceeds the 376 mV achieved by using the Class-D converter alone. In this paper, the topology proposed by the ultrasonic fingerprint sensor converter driver was experimentally verified, which greatly improved the boost ratio and can be considered suitable for wider applications. Full article
(This article belongs to the Special Issue Piezoelectric Micro-/Nano Systems in China)
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