NDLI: Evaluation of a high sensitivity radiofrequency inductive probe for the non-contact sensing of dielectric properties of organic media

Content Provider	IEEE Xplore Digital Library
Author	Masilamany, G. Joubert, P.-Y. Serfaty, S. Roucaries, B. Griesmar, P.
Copyright Year	2015
Description	Author affiliation: SATIE - Syst., Energy & Inf. Applic. Technol., Cergy Pontoise Univ., Cergy, France (Serfaty, S.; Roucaries, B.; Griesmar, P.) \|\| IEF - Fundamental Electron. Inst., Paris Sud Univ., Orsay, France (Masilamany, G.; Joubert, P.-Y.)
Abstract	The sensing of dielectric properties of organic media is required in various fields such as agriculture, food industry or human health. Indeed these properties are related to the state of the organic media, and may be used as relevant indicators, especially in the radiofrequencies (RF), to either assess the quality of food in food industry or the physiopathological state of tissues in medical applications. As opposed to some conventional dielectric measurement techniques, the technique proposed in this study is contactless, easy to implement, and sensitive to both the conductivity and the permittivity of the media under investigation. The sensing technique lies in the distant monitoring of a high-quality factor inductive RF resonator, electromagnetically coupled to the investigated medium. In this study, the authors aim at assessing the feasibility and accuracy of dielectric media sensing by means of their contactless and easy-to-implement method. To that purpose, a wireless cylindrical inductive RF resonator inductively coupled to a monitoring bobbin coil is considered. It constitutes a radiating transmit and receive inductive sensor electromagnetically interacting with its direct environment (e.g. organic material). The dielectric properties of this environment are sensed through the impedance changes of the resonator, which is remotely monitored by a distant bobbin coil. In this study, the resonator is implemented for the distant sensing of organic material phantoms constituted of solutions featuring tabulated dielectric properties. A lumped element modeling of the RF probe interacting with the medium is proposed. Preliminary results open the way to the development of easy-to-implement dielectric characterization techniques of organic media, such as contactless medical sensing devices.
Starting Page	1
Ending Page	5
File Size	757986
Page Count	5
File Format	PDF
ISBN	9781479961177
DOI	10.1109/SAS.2015.7133632
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-04-13
Publisher Place	Croatia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	biological tissue characterization agri-food characterization dielectric characterization Estimation Conductivity Media Dielectric measurement Dielectrics resonators Radio frequency Radiofrequency sensors inductive coupling non-invasive and contactless sensing Permittivity
Content Type	Text
Resource Type	Article

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