Next Article in Journal
An Automatic Measurement Method for Absolute Depth of Objects in Two Monocular Images Based on SIFT Feature
Previous Article in Journal
Microtab Design and Implementation on a 5 MW Wind Turbine
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessArticle
Appl. Sci. 2017, 7(6), 538; doi:10.3390/app7060538

Investigation on Eddy Current Sensor in Tension Measurement at a Resonant Frequency

1
Faculty of Infrastructure Engineering, State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China
2
Department of Architectural Engineering, School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Chien-Hung Liu
Received: 29 March 2017 / Revised: 3 May 2017 / Accepted: 9 May 2017 / Published: 24 May 2017
View Full-Text   |   Download PDF [3311 KB, uploaded 24 May 2017]   |  

Abstract

For resolving deficiencies of conventional tension measurement methods, this paper proposes a novel eddy current sensor with a single-coil structure based on the inverse magnetostrictive effect. An inductor–resistor–capacitor (LRC) model of eddy current sensor, which considers more parameters than the traditional inductor–resistor (LR) model, was established. The eddy current sensor was operated by a swept frequency signal that ranged from 0.1 MHz to 1.6 MHz, encompassing the sensor resonant frequency. At the resonant frequency, the data of impedance magnitude and phase were extracted and linear relations between the impedance parameters and the external tension were ascertained. The experimental results show that the resonant frequency and impedance magnitude of eddy current sensor will decrease linearly with the increase of the external tension, which is consistent with the theoretical model. In addition, to improve sensor performance, the sleeve structure was designed to reduce the loss of magnetic field. Both finite element simulations and experimental results demonstrate that the sleeve structure provides a higher permeability path to the magnetic field lines than the non-sleeve structure and effectively improves sensor sensitivity and correlation coefficient. View Full-Text
Keywords: eddy current sensor; tension measurement; finite element simulation; resonant frequency; impedance analysis eddy current sensor; tension measurement; finite element simulation; resonant frequency; impedance analysis
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

Xiu, C.; Ren, L.; Li, H. Investigation on Eddy Current Sensor in Tension Measurement at a Resonant Frequency. Appl. Sci. 2017, 7, 538.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top