A self-powered wireless motion sensor based on a high-surface area reverse electrowetting-on-dielectric energy harvester.

Nishat T Tasneem, Dipon K Biswas, Pashupati R Adhikari, Avinash Gunti, Adnan B Patwary, Russell C Reid, Ifana Mahbub

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Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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7 authors.

Nishat T TasneemDepartment of Electrical Engineering, University of North Texas, Denton, TX, 76201, USA. nishattarannumtasneem@my.unt.edu.

Dipon K BiswasDepartment of Electrical Engineering, University of North Texas, Denton, TX, 76201, USA.

Pashupati R AdhikariDepartment of Mechanical Engineering, University of North Texas, Denton, TX, 76201, USA.

Avinash GuntiDepartment of Electrical Engineering, University of North Texas, Denton, TX, 76201, USA.

Adnan B PatwaryDepartment of Electrical Engineering, University of North Texas, Denton, TX, 76201, USA.

Russell C ReidDepartment of Engineering, Dixie State University, St. George, UT, 84770, USA.

Ifana MahbubDepartment of Electrical Engineering, University of North Texas, Denton, TX, 76201, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This paper presents a motion-sensing device with the capability of harvesting energy from low-frequency motion activities. Based on the high surface area reverse electrowetting-on-dielectric (REWOD) energy harvesting technique, mechanical modulation of the liquid generates an AC signal, which is modeled analytically and implemented in Matlab and COMSOL. A constant DC voltage is produced by using a rectifier and a DC-DC converter to power up the motion-sensing read-out circuit. A charge amplifier converts the generated charge into a proportional output voltage, which is transmitted wirelessly to a remote receiver. The harvested DC voltage after the rectifier and DC-DC converter is found to be 3.3 V, having a measured power conversion efficiency (PCE) of the rectifier as high as 40.26% at 5 Hz frequency. The energy harvester demonstrates a linear relationship between the frequency of motion and the generated output power, making it highly suitable as a self-powered wearable motion sensor.

Indexed as

ElectricityElectrowettingElectric Power SuppliesEquipment DesignMotion

Identifiers

PMID35260661

DOI10.1038/s41598-022-07631-4

PMCPMC8904818

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LicenceCC BY

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