title: Metamaterial based telemetric strain sensing in different materials.
abstract: We present telemetric sensing of surface strains on different industrial materials using split-ring-resonator based metamaterials. For wireless strain sensing, we utilize metamaterial array architectures for high sensitivity and low nonlinearity-errors in strain sensing. In this work, telemetric strain measurements in three test materials of cast polyamide, derlin and polyamide are performed by observing operating frequency shift under mechanical deformation and these data are compared with commercially-available wired strain gauges. We demonstrate that hard material (cast polyamide) showed low slope in frequency shift vs. applied load (corresponding to high Young's modulus), while soft material (polyamide) exhibited high slope (low Young's modulus).
authors.affiliation: Departments of Electrical Engineering and Physics, Nanotechnology Research Center, and Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey. rohat@ee.bilkent.edu.tr
authors.forename: Rohat
authors.initials: R
authors.lastname: Melik
authors.forename: Emre
authors.initials: E
authors.lastname: Unal
authors.forename: Nihan Kosku
authors.initials: NK
authors.lastname: Perkgoz
authors.forename: Christian
authors.initials: C
authors.lastname: Puttlitz
authors.forename: Hilmi Volkan
authors.initials: HV
authors.lastname: Demir
references.citation: Phys Rev Lett. 2003 Mar 14;90(10):107401
references.pmid: 12689029
references.citation: Nat Mater. 2008 Jul;7(7):543-6
references.pmid: 18469820
references.citation: Phys Rev Lett. 2007 Aug 10;99(6):063903
references.pmid: 17930824
references.citation: Science. 2006 May 12;312(5775):892-4
references.pmid: 16690860
references.citation: Science. 2001 Apr 6;292(5514):77-9
references.pmid: 11292865
references.citation: Phys Rev Lett. 2005 Jan 28;94(3):037402
references.pmid: 15698321