Piezoelectric Transducers: Materials, Devices and Applications

A topical collection in Micromachines (ISSN 2072-666X).

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Editor


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Collection Editor
Microsystems, Actuators and Sensors Lab, INAMOL-Universidad de Castilla-La Mancha, 45071 Toledo, Spain
Interests: MEMS/NEMS; piezoelectric microsystems; integrated sensors and transducers; miniaturization of instrumentation for applications in chemistry; food technology; robotics; biotechnology and IoT
Special Issues, Collections and Topics in MDPI journals

Topical Collection Information

Dear Colleagues,

Advances in the miniaturization of sensors, actuators, and smart systems are receiving substantial industrial attention, and a wide variety of transducers have been made commercially available or possess the high potential to impact emerging markets. It is now possible to substitute existing products based on bulk materials with those with a reduced size, lower cost, and higher performance in the automotive, environment, food, robotics, medicine, biotechnology and communications fields, with potential for manufacturing using advanced silicon integrated circuit technology or alternative additive techniques from the milli- to nano-scale.

In this Topical Collection focused on piezoelectric transducers, a wide range of topics are covered, including the design, fabrication, characterization, packaging, and system integration or final applications of transducers based on milli/micro/nano-electro-mechanical systems:

  • Materials research oriented towards piezoelectric transducers and intelligent systems.
  • Processes and fabrication technologies for piezoelectric sensors and actuators.
  • Modeling, design, and simulation of piezoelectric transducer devices.
  • Devices and circuits for the Internet of Things focused on piezoelectric transducer applications.
  • Resonant and traveling-wave piezoelectric sensors and actuators.
  • Ultrasonic transducers, energy harvesters, RF MEMS/NEMS, motors, transformers, electrooptic devices, nano-positioning systems, vibration control, chemical sensors, biomedical and healthcare transducers and other applications based on piezoelectric materials.
  • Calibration, characterization, and testing techniques.
  • Reliability and failure analysis.
  • System integration, interface electronics, and power consumption.
  • Applications and markets, control and measurement systems.

Prof. Dr. Jose Luis Sanchez-Rojas
Collection 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 collection 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.

Prof. Dr. Jose Luis Sanchez-Rojas
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 collection 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 devices
  • sensors
  • actuators
  • MEMS
  • NEMS
  • smart systems
  • microsystems
  • miniaturization
  • polymers
  • additive manufacturing

Published Papers (2 papers)

2024

Jump to: 2023

0 pages, 3575 KiB  
Article
Comprehensive Noise Modeling of Piezoelectric Charge Accelerometer with Signal Conditioning Circuit
by Ghulam Ali and Faisal Mohd-Yasin
Micromachines 2024, 15(2), 283; https://doi.org/10.3390/mi15020283 - 17 Feb 2024
Viewed by 887
Abstract
This paper reports on noise modeling of a piezoelectric charge accelerometer with a signal conditioning circuit. The charge output is converted into voltage and amplified using a JFET operational amplifier that has high input resistance and low noise. The noise sources in the [...] Read more.
This paper reports on noise modeling of a piezoelectric charge accelerometer with a signal conditioning circuit. The charge output is converted into voltage and amplified using a JFET operational amplifier that has high input resistance and low noise. The noise sources in the whole system include electrical and mechanical thermal noises of the accelerometer, thermal noises of resistors, and voltage and current noises of the operational amplifier. Noise gain of each source is derived from small signal circuit analysis. It is found that the feedback resistor of the operational amplifier is a major source of noise in low frequencies, whereas electrical thermal noise of the accelerometer dominates the rest of spectrum. This method can be used to pair a highly sensitive sensor with a single JFET operational amplifier instead of a multi-stage signal conditioning circuit. Full article
Show Figures

Figure 1

2023

Jump to: 2024

16 pages, 7497 KiB  
Article
A Single Oscillator-Excited Piezoelectric Actuator with Internal Contact Teeth
by Die Fang, Zhiyi Wen, Zhixin Geng, Xiaopin Hu, Leon Kaswango, Jia Cao, Xiaoniu Li and Dawei Wu
Micromachines 2024, 15(1), 47; https://doi.org/10.3390/mi15010047 - 26 Dec 2023
Viewed by 821
Abstract
The tail rotor of a helicopter, a crucial component, traditionally relies on a complex drive mode involving reducers and transmission gears. This conventional setup, with its lengthy transmission chain and numerous components, hinders miniaturization efforts. In response to this challenge, our paper presents [...] Read more.
The tail rotor of a helicopter, a crucial component, traditionally relies on a complex drive mode involving reducers and transmission gears. This conventional setup, with its lengthy transmission chain and numerous components, hinders miniaturization efforts. In response to this challenge, our paper presents a novel piezoelectric drive approach. Our objective was to suggest an innovative design capable of minimizing the components involved in the tail rotor drive. This design can be adjusted in size according to specific requirements and is effective up to a specified speed. Moreover, it facilitates the process of miniaturization and integration. The piezoelectric actuator’s stator comprises an ultrasonic amplitude transformer, a ring, and three drive teeth. Utilizing the rod-like structure of the tail brace, the actuator is simplified by adhering ceramic sheets to it. The rotary piezoelectric actuator combines the first longitudinal mode of a rod with torus bending modes. The drive teeth then amplify the ring’s displacement, facilitating rotor rotation. The resonant frequency and modal shape of the actuator were determined using the finite element method. Furthermore, an investigation was conducted to analyze the influence of the drive teeth positioning on the motion trajectory at the contact point. Theoretically, we infer that the declination angle of the drive tooth is a crucial parameter for achieving high speeds. To test our idea, we built three prototype stators with different drive tooth declination angles. Our actuator stands out for its cost-effectiveness, structural simplicity, compatibility with harmonic signals, and ease of miniaturization. It can be considered for the drive of the tail rotor of a microhelicopter. Full article
Show Figures

Figure 1

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