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A Wireless, Passive Sensor for Quantifying Packaged Food Quality

This paper describes the fabrication of a wireless, passive sensor based on an inductive-capacitive resonant circuit, and its application for in situ monitoring of the quality of dry, packaged food such as cereals, and fried and baked snacks. The sensor is made of a planar inductor and capacitor pri...

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Detalles Bibliográficos
Autores principales: Tan, Ee Lim, Ng, Wen Ni, Shao, Ranyuan, Pereles, Brandon D., Ong, Keat Ghee
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2007
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3841844/
https://www.ncbi.nlm.nih.gov/pubmed/28903195
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author Tan, Ee Lim
Ng, Wen Ni
Shao, Ranyuan
Pereles, Brandon D.
Ong, Keat Ghee
author_facet Tan, Ee Lim
Ng, Wen Ni
Shao, Ranyuan
Pereles, Brandon D.
Ong, Keat Ghee
author_sort Tan, Ee Lim
collection PubMed
description This paper describes the fabrication of a wireless, passive sensor based on an inductive-capacitive resonant circuit, and its application for in situ monitoring of the quality of dry, packaged food such as cereals, and fried and baked snacks. The sensor is made of a planar inductor and capacitor printed on a paper substrate. To monitor food quality, the sensor is embedded inside the food package by adhering it to the package's inner wall; its response is remotely detected through a coil connected to a sensor reader. As food quality degrades due to increasing humidity inside the package, the paper substrate absorbs water vapor, changing the capacitor's capacitance and the sensor's resonant frequency. Therefore, the taste quality of the packaged food can be indirectly determined by measuring the change in the sensor's resonant frequency. The novelty of this sensor technology is its wireless and passive nature, which allows in situ determination of food quality. In addition, the simple fabrication process and inexpensive sensor material ensure a low sensor cost, thus making this technology economically viable.
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spelling pubmed-38418442013-11-27 A Wireless, Passive Sensor for Quantifying Packaged Food Quality Tan, Ee Lim Ng, Wen Ni Shao, Ranyuan Pereles, Brandon D. Ong, Keat Ghee Sensors (Basel) Article This paper describes the fabrication of a wireless, passive sensor based on an inductive-capacitive resonant circuit, and its application for in situ monitoring of the quality of dry, packaged food such as cereals, and fried and baked snacks. The sensor is made of a planar inductor and capacitor printed on a paper substrate. To monitor food quality, the sensor is embedded inside the food package by adhering it to the package's inner wall; its response is remotely detected through a coil connected to a sensor reader. As food quality degrades due to increasing humidity inside the package, the paper substrate absorbs water vapor, changing the capacitor's capacitance and the sensor's resonant frequency. Therefore, the taste quality of the packaged food can be indirectly determined by measuring the change in the sensor's resonant frequency. The novelty of this sensor technology is its wireless and passive nature, which allows in situ determination of food quality. In addition, the simple fabrication process and inexpensive sensor material ensure a low sensor cost, thus making this technology economically viable. Molecular Diversity Preservation International (MDPI) 2007-09-05 /pmc/articles/PMC3841844/ /pubmed/28903195 Text en © 2007 by MDPI (http://www.mdpi.org). Reproduction is permitted for noncommercial purposes.
spellingShingle Article
Tan, Ee Lim
Ng, Wen Ni
Shao, Ranyuan
Pereles, Brandon D.
Ong, Keat Ghee
A Wireless, Passive Sensor for Quantifying Packaged Food Quality
title A Wireless, Passive Sensor for Quantifying Packaged Food Quality
title_full A Wireless, Passive Sensor for Quantifying Packaged Food Quality
title_fullStr A Wireless, Passive Sensor for Quantifying Packaged Food Quality
title_full_unstemmed A Wireless, Passive Sensor for Quantifying Packaged Food Quality
title_short A Wireless, Passive Sensor for Quantifying Packaged Food Quality
title_sort wireless, passive sensor for quantifying packaged food quality
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3841844/
https://www.ncbi.nlm.nih.gov/pubmed/28903195
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