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      Flexible metamaterials for wireless strain sensing

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      Author(s)
      Melik, R.
      Unal, E.
      Perkgoz, N. K.
      Puttlitz, C.
      Demir, Hilmi Volkan
      Date
      2009-11-04
      Source Title
      Applied Physics Letters
      Print ISSN
      0003-6951
      Publisher
      American Institute of Physics
      Volume
      95
      Issue
      18
      Pages
      181105-1 - 181105-3
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      We proposed and demonstrated flexible metamaterial-based wireless strain sensors that include arrays of split ring resonators (SRRs) to telemetrically measure strain. For these metamaterial sensors, we showed that a flexible substrate (e.g., Kapton tape) delivers greater sensitivity and a more linear response as compared to using silicon substrates. Specifically, these tape-based flexible SRR sensors exhibit a significantly improved sensitivity level of 0.292 MHz/kgf with a substantially reduced nonlinearity error of 3% for externally applied mechanical loads up to 250 kgf. These data represent a sixfold increase in sensitivity and a 16-fold reduction in error percentage.
      Keywords
      Error percentage
      Flexible substrate
      Linear response
      Mechanical loads
      Non-linearity errors
      Silicon substrates
      Split ring resonator
      Strain sensing
      Strain sensors
      Electronic equipment
      Polyimides
      Ring gages
      Sensors
      Substrates
      Metamaterials
      Permalink
      http://hdl.handle.net/11693/22568
      Published Version (Please cite this version)
      http://dx.doi.org/10.1063/1.3250175
      Collections
      • Department of Electrical and Electronics Engineering 3702
      • Department of Physics 2397
      • Institute of Materials Science and Nanotechnology (UNAM) 1930
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