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Tracking and Dynamic Tuning of a Wireless Powered Endoscopic Capsule †
This work presents an inductive wireless power transfer system for powering an endoscopy capsule supplying energy to power electronic devices allocated inside a capsule of ≈26.1 mm × 9 mm. A receiver with three coils in quadrature with dimensions of ≈9 mm × 9 mm × 10 mm is located inside the capsule...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9506451/ https://www.ncbi.nlm.nih.gov/pubmed/36146266 http://dx.doi.org/10.3390/s22186924 |
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author | Murliky, Lucas Oliveira, Gustavo de Sousa, Fernando Rangel Brusamarello, Valner João |
author_facet | Murliky, Lucas Oliveira, Gustavo de Sousa, Fernando Rangel Brusamarello, Valner João |
author_sort | Murliky, Lucas |
collection | PubMed |
description | This work presents an inductive wireless power transfer system for powering an endoscopy capsule supplying energy to power electronic devices allocated inside a capsule of ≈26.1 mm × 9 mm. A receiver with three coils in quadrature with dimensions of ≈9 mm × 9 mm × 10 mm is located inside the capsule, moving freely inside a transmitter coil with 380 mm diameter through translations and revolutions. The proposed system tracks the variations of the equivalent magnetic coupling coefficient compensating misalignments between the transmitter and receiver coils. The power on the load is estimated and optimized from the transmitter, and the tracking control is performed by actuating on a capacitance in the matching network and on the voltage source frequency. The proposed system can prevent load overheating by limiting the power via adjusting of the magnitude of voltage source [Formula: see text]. Experimental results with uncertainties analysis reveal that, even at low magnetic coupling coefficients k ranging from (1.7 × 10 [Formula: see text] , 3.5 × 10 [Formula: see text]), the power on the load can be held within the range of 100–130 mW. These results are achieved with any position of the capsule in the space, limited by the diameter of the transmitter coil and height of 200 mm when adjusting the series capacitance of the transmitter in the range (17.4, 19.4) pF and the frequency of the power source in the range (802.1, 809.5) kHz. |
format | Online Article Text |
id | pubmed-9506451 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-95064512022-09-24 Tracking and Dynamic Tuning of a Wireless Powered Endoscopic Capsule † Murliky, Lucas Oliveira, Gustavo de Sousa, Fernando Rangel Brusamarello, Valner João Sensors (Basel) Article This work presents an inductive wireless power transfer system for powering an endoscopy capsule supplying energy to power electronic devices allocated inside a capsule of ≈26.1 mm × 9 mm. A receiver with three coils in quadrature with dimensions of ≈9 mm × 9 mm × 10 mm is located inside the capsule, moving freely inside a transmitter coil with 380 mm diameter through translations and revolutions. The proposed system tracks the variations of the equivalent magnetic coupling coefficient compensating misalignments between the transmitter and receiver coils. The power on the load is estimated and optimized from the transmitter, and the tracking control is performed by actuating on a capacitance in the matching network and on the voltage source frequency. The proposed system can prevent load overheating by limiting the power via adjusting of the magnitude of voltage source [Formula: see text]. Experimental results with uncertainties analysis reveal that, even at low magnetic coupling coefficients k ranging from (1.7 × 10 [Formula: see text] , 3.5 × 10 [Formula: see text]), the power on the load can be held within the range of 100–130 mW. These results are achieved with any position of the capsule in the space, limited by the diameter of the transmitter coil and height of 200 mm when adjusting the series capacitance of the transmitter in the range (17.4, 19.4) pF and the frequency of the power source in the range (802.1, 809.5) kHz. MDPI 2022-09-13 /pmc/articles/PMC9506451/ /pubmed/36146266 http://dx.doi.org/10.3390/s22186924 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Murliky, Lucas Oliveira, Gustavo de Sousa, Fernando Rangel Brusamarello, Valner João Tracking and Dynamic Tuning of a Wireless Powered Endoscopic Capsule † |
title | Tracking and Dynamic Tuning of a Wireless Powered Endoscopic Capsule † |
title_full | Tracking and Dynamic Tuning of a Wireless Powered Endoscopic Capsule † |
title_fullStr | Tracking and Dynamic Tuning of a Wireless Powered Endoscopic Capsule † |
title_full_unstemmed | Tracking and Dynamic Tuning of a Wireless Powered Endoscopic Capsule † |
title_short | Tracking and Dynamic Tuning of a Wireless Powered Endoscopic Capsule † |
title_sort | tracking and dynamic tuning of a wireless powered endoscopic capsule † |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9506451/ https://www.ncbi.nlm.nih.gov/pubmed/36146266 http://dx.doi.org/10.3390/s22186924 |
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