{"title":"A Low-Frequency High-Performance Harvesting System With Combined Cantilever Beam","authors":"Shuting Tang;Chaoqun Ma;Debo Wang","doi":"10.1109/JSEN.2024.3392588","DOIUrl":null,"url":null,"abstract":"In order to achieve highly efficient energy harvesting in low-frequency vibration environment, a combined cantilever piezoelectric energy harvester (CCPEH) is studied in this work. The design uses a circular cantilever beam to reduce the resonant frequency and achieve multidirectional energy harvesting. The trapezoidal cantilever beam and arc spiral cantilever beam are coupled to each other to improve the energy harvester efficiency per unit volume. The relationship of the arc with a radial pitch of circular cantilever beam is studied. The piezoelectric energy harvesting system with different combined cantilever beam structures is fabricated, and the output performance of those energy harvesting systems is measured and compared. The measured results show that the CCPEH with an arc of \n<inline-formula> <tex-math>$4\\pi $ </tex-math></inline-formula>\n and a radial pitch of 8 mm can achieve multidirectional harvesting and improve the energy harvesting efficiency per unit volume with a resonant frequency of 39 Hz, an output voltage of 46.4 V, and an output power of \n<inline-formula> <tex-math>$2337 \\, \\mu $ </tex-math></inline-formula>\nW. This structure of piezoelectric energy harvester (PEH) can be effectively applied in wireless sensors and microelectronic devices.","PeriodicalId":447,"journal":{"name":"IEEE Sensors Journal","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Sensors Journal","FirstCategoryId":"103","ListUrlMain":"https://ieeexplore.ieee.org/document/10510207/","RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In order to achieve highly efficient energy harvesting in low-frequency vibration environment, a combined cantilever piezoelectric energy harvester (CCPEH) is studied in this work. The design uses a circular cantilever beam to reduce the resonant frequency and achieve multidirectional energy harvesting. The trapezoidal cantilever beam and arc spiral cantilever beam are coupled to each other to improve the energy harvester efficiency per unit volume. The relationship of the arc with a radial pitch of circular cantilever beam is studied. The piezoelectric energy harvesting system with different combined cantilever beam structures is fabricated, and the output performance of those energy harvesting systems is measured and compared. The measured results show that the CCPEH with an arc of
$4\pi $
and a radial pitch of 8 mm can achieve multidirectional harvesting and improve the energy harvesting efficiency per unit volume with a resonant frequency of 39 Hz, an output voltage of 46.4 V, and an output power of
$2337 \, \mu $
W. This structure of piezoelectric energy harvester (PEH) can be effectively applied in wireless sensors and microelectronic devices.
期刊介绍:
The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following:
-Sensor Phenomenology, Modelling, and Evaluation
-Sensor Materials, Processing, and Fabrication
-Chemical and Gas Sensors
-Microfluidics and Biosensors
-Optical Sensors
-Physical Sensors: Temperature, Mechanical, Magnetic, and others
-Acoustic and Ultrasonic Sensors
-Sensor Packaging
-Sensor Networks
-Sensor Applications
-Sensor Systems: Signals, Processing, and Interfaces
-Actuators and Sensor Power Systems
-Sensor Signal Processing for high precision and stability (amplification, filtering, linearization, modulation/demodulation) and under harsh conditions (EMC, radiation, humidity, temperature); energy consumption/harvesting
-Sensor Data Processing (soft computing with sensor data, e.g., pattern recognition, machine learning, evolutionary computation; sensor data fusion, processing of wave e.g., electromagnetic and acoustic; and non-wave, e.g., chemical, gravity, particle, thermal, radiative and non-radiative sensor data, detection, estimation and classification based on sensor data)
-Sensors in Industrial Practice