Two-dimensional alignment and displacement sensor based on movable broadside-coupled split ring resonators
Karami-Horestani, Ali (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering)
Naqui Garolera, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Shaterian, Zahra (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering)
Abbott, Derek (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering)
Fumeaux, Cristophe (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering)
Martín, Ferran (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)

Date:	2014
Abstract:	This paper proposes a two-dimensional alignment and displacement sensor based on movable broadside-coupled split ring resonators (BC-SRRs). As a basis for this sensor, a one-dimensional displacement sensor based on a microstrip line loaded with BC-SRRs is presented firstly. It is shown that compared to previously published displacement sensors, based on SRR-loaded coplanar waveguides, the proposed one-dimensional sensor benefits from a much wider dynamic range. Secondly, it is shown that with modifications in the geometry of the BC-SRRs, the proposed one-dimensional sensor can be modified and extended by adding a second element to create a high-dynamic range two-dimensional displacement sensor. Since the proposed sensors operate based on a split in the resonance frequency, rather than the resonance depth, they benefit from a high immunity to environmental noise. Furthermore, since the sensors' principle of operation is based on the deviation from symmetry, they are more robust to ambient conditions such as changes in the temperature, and thus they can be used as alignment sensors as well. A prototype of the proposed two-dimensional sensor is fabricated and the concept and simulation results are validated through experiment.
Grants:	Ministerio de Ciencia e Innovación CSD2008-00066 Ministerio de Ciencia e Innovación TEC2010-17512 Ministerio de Ciencia e Innovación TEC2011-13615-E Agència de Gestió d'Ajuts Universitaris i de Recerca 2019/SGR-421
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Language:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Subject:	Split ring resonators
Published in:	Sensors and actuators A, Vol. 210 (April 2014) , p. 18-24, ISSN 1873-3069

DOI: 10.1016/j.sna.2014.01.030

Pre-print 17 p, 1.4 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Engineering > CIMITEC-UAB
Articles > Research articles
Articles > Published articles