Smart Sensing

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

Deadline for manuscript submissions: closed (15 August 2023) | Viewed by 3692

Special Issue Editor

1. Department of Electrical Engineering, College of Engineering, Chang Gung University, Taoyuan 33302, Taiwan
2. Department of Neurosurgery, Linkou Chang Gung Memorial Hospital, Taoyuan 33302, Taiwan
Interests: biomedical engineering; circuits and systems; sensors and transducers; vision; instrumentation and measurement
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Many techniques have been proposed for sensing applications involved in biomedical, automotive, geophysics, smart transportation, and so on. It is an outcome of multidisciplinary collaborations between engineering and sciences. This Special Issue aims at presenting the most recent advances and review surveys in the field, with particular emphasis on integration with application-specific cutting-edge sensing components, devices, and algorithms including AI. Circuits related to realizing the components that can be integrated with the systems beneficial to sensing technology are also extremely welcome.

Topics may include but are not limited to:

  1. Energy-harvesting-based sensing technologies;
  2.  Circuits and systems for energy harvesting;
  3. Telemetry of energy harvesting;
  4. Sensors in energy harvesting;
  5. Advanced energy harvesting systems for sensing;
  6. Unmet need for sensors and/or sensing applied to energy harvesting;
  7. Integration between micromachined sensing components and front-end circuits;
  8. Readout circuits and systems for miniaturized micromachined sensors;
  9. Sampling, quantization, (de)modulation techniques used to process sensed results;
  10. Sensing-involved early fault diagnosis.

Dr. Cihun-Siyong (Alex) Gong
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. 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

  • wirelessly powered
  • energy harvesting
  • circuits
  • systems
  • micromachine
  • sensor
  • smart sensing
  • miniaturization
  • AI
  • fault prediction
  • algorithms

Published Papers (2 papers)

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Research

10 pages, 5374 KiB  
Communication
A High-Reliability Piezoelectric Tile Transducer for Converting Bridge Vibration to Electrical Energy for Smart Transportation
by Thanh Huyen Pham, Thanh Danh Bui and Toan Thanh Dao
Micromachines 2023, 14(5), 1058; https://doi.org/10.3390/mi14051058 - 17 May 2023
Cited by 2 | Viewed by 2346
Abstract
Piezoelectric energy transducers offer great potential for converting the vibrations of pedestrian footsteps or cars moving on a bridge or road into electricity. However, existing piezoelectric energy-harvesting transducers are limited by their poor durability. In this paper, to enhance this durability, a piezoelectric [...] Read more.
Piezoelectric energy transducers offer great potential for converting the vibrations of pedestrian footsteps or cars moving on a bridge or road into electricity. However, existing piezoelectric energy-harvesting transducers are limited by their poor durability. In this paper, to enhance this durability, a piezoelectric energy transducer with a flexible piezoelectric sensor is fabricated in a tile protype with indirect touch points and a protective spring. The electrical output of the proposed transducer is examined as a function of pressure, frequency, displacement, and load resistance. The maximum output voltage and maximum output power obtained were 6.8 V and 4.5 mW, respectively, at a pressure of 70 kPa, a displacement of 2.5 mm, and a load resistance of 15 kΩ. The designed structure limits the risk of destroying the piezoelectric sensor during operation. The harvesting tile transducer can work properly even after 1000 cycles. Furthermore, to demonstrate its practical applications, the tile was placed on the floor of an overpass and a walking tunnel. Consequently, it was observed that the electrical energy harvested from the pedestrian footsteps could power an LED light fixture. The findings suggest that the proposed tile offers promise with respect to harvesting energy produced during transportation. Full article
(This article belongs to the Special Issue Smart Sensing)
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9 pages, 4812 KiB  
Article
Wireless High Temperature Sensing Chipless Tag Based on a Diamond Ring Resonator
by Bo Wang, Youwei Li, Tingting Gu and Ke Wang
Micromachines 2023, 14(4), 731; https://doi.org/10.3390/mi14040731 - 25 Mar 2023
Viewed by 914
Abstract
A passive wireless sensor is designed for real-time monitoring of a high temperature environment. The sensor is composed of a double diamond split rings resonant structure and an alumina ceramic substrate with a size of 23 × 23 × 0.5 mm3. [...] Read more.
A passive wireless sensor is designed for real-time monitoring of a high temperature environment. The sensor is composed of a double diamond split rings resonant structure and an alumina ceramic substrate with a size of 23 × 23 × 0.5 mm3. The alumina ceramic substrate is selected as the temperature sensing material. The principle is that the permittivity of the alumina ceramic changes with the temperature and the resonant frequency of the sensor shifts accordingly. Its permittivity bridges the relation between the temperature and resonant frequency. Therefore, real time temperatures can be measured by monitoring the resonant frequency. The simulation results show that the designed sensor can monitor temperatures in the range 200~1000 °C corresponding to a resonant frequency of 6.79~6.49 GHz with shifting 300 MHz and a sensitivity of 0.375 MHz/°C, and demonstrate the quasi-linear relation between resonant frequency and temperature. The sensor has the advantages of wide temperature range, good sensitivity, low cost and small size, which gives it superiority in high temperature applications. Full article
(This article belongs to the Special Issue Smart Sensing)
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