Next Article in Journal
Application of Motion Sensors for Beam-Tracking of Mobile Stations in mmWave Communication Systems
Next Article in Special Issue
A Naked Eye Refractive Index Sensor with a Visible Multiple Peak Metamaterial Absorber
Previous Article in Journal
Towards Efficient Mobile M2M Communications: Survey and Open Challenges
Previous Article in Special Issue
Metallic Strip Gratings in the Sub-Subwavelength Regime
Article Menu

Export Article

Open AccessArticle
Sensors 2014, 14(10), 19609-19621; doi:10.3390/s141019609

Wireless Measurement of Elastic and Plastic Deformation by a Metamaterial-Based Sensor

1
Department of Electrical and Electronics Engineering, Department of Physics, UNAM—Institute of Materials Science and Nanotechnology, Bilkent University, Ankara TR-06800, Turkey
2
School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 639798, Singapore
3
Department of Civil Engineering, Middle East Technical University, Ankara TR-06800, Turkey
4
Faculty of Engineering and Natural Sciences, Abdullah Gul University, Kayseri 38039, Turkey
*
Author to whom correspondence should be addressed.
Received: 14 August 2014 / Revised: 30 September 2014 / Accepted: 14 October 2014 / Published: 20 October 2014
(This article belongs to the Special Issue Metamaterial-Inspired Sensors)
View Full-Text   |   Download PDF [1785 KB, uploaded 20 October 2014]   |  

Abstract

We report remote strain and displacement measurement during elastic and plastic deformation using a metamaterial-based wireless and passive sensor. The sensor is made of a comb-like nested split ring resonator (NSRR) probe operating in the near-field of an antenna, which functions as both the transmitter and the receiver. The NSRR probe is fixed on a standard steel reinforcing bar (rebar), and its frequency response is monitored telemetrically by a network analyzer connected to the antenna across the whole stress-strain curve. This wireless measurement includes both the elastic and plastic region deformation together for the first time, where wired technologies, like strain gauges, typically fail to capture. The experiments are further repeated in the presence of a concrete block between the antenna and the probe, and it is shown that the sensing system is capable of functioning through the concrete. The comparison of the wireless sensor measurement with those undertaken using strain gauges and extensometers reveals that the sensor is able to measure both the average strain and the relative displacement on the rebar as a result of the applied force in a considerably accurate way. The performance of the sensor is tested for different types of misalignments that can possibly occur due to the acting force. These results indicate that the metamaterial-based sensor holds great promise for its accurate, robust and wireless measurement of the elastic and plastic deformation of a rebar, providing beneficial information for remote structural health monitoring and post-earthquake damage assessment. View Full-Text
Keywords: displacement sensor; strain sensor; elastic-plastic region; metamaterial; structural health monitoring displacement sensor; strain sensor; elastic-plastic region; metamaterial; structural health monitoring
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Ozbey, B.; Demir, H.V.; Kurc, O.; Erturk, V.B.; Altintas, A. Wireless Measurement of Elastic and Plastic Deformation by a Metamaterial-Based Sensor. Sensors 2014, 14, 19609-19621.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top