Wireless strain sensor based on the magnetic strain anisotropy dependent ferromagnetic resonance

Yicheng Chen; Chaojie Hu; Zhiguang Wang; Yaojin Li; Shukai Zhu; Wei Su; Zhongqiang Hu; Ziyao Zhou; Ming Liu

doi:10.1063/5.0022900

AIP Advances (Oct 2020)

Wireless strain sensor based on the magnetic strain anisotropy dependent ferromagnetic resonance

Yicheng Chen,
Chaojie Hu,
Zhiguang Wang,
Yaojin Li,
Shukai Zhu,
Wei Su,
Zhongqiang Hu,
Ziyao Zhou,
Ming Liu

Affiliations

Yicheng Chen: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Chaojie Hu: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Zhiguang Wang: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Yaojin Li: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Shukai Zhu: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Wei Su: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Zhongqiang Hu: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Ziyao Zhou: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Ming Liu: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China

DOI: https://doi.org/10.1063/5.0022900
Journal volume & issue: Vol. 10, no. 10
pp. 105310 – 105310-6

Abstract

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Wireless strain sensors have received extensive attention owing to their wide application prospects in structural health monitoring, industrial automation, human activity monitoring, and intelligent robotic systems. Here, a wireless strain sensor prototype based on the magnetoelectric heterostructure of ferromagnetic thin films on a piezoelectric substrate has been developed. The ferromagnetic resonance (FMR) frequency of the sensor is strongly dependent on external strain due to the large magnetostriction of the film. The piezoelectric substrate with a programmable voltage has been used as a strain source for the characterization of the wireless strain sensor. The limit of detection of the wireless strain sensor is 0.54 με, which is comparable with that of commercial metal-foil sensors that need connection wires. More importantly, the FMR strain sensor shows a sensitivity of 65.46 ppm/με, indicating more than a 60 fold improvement than that of traditional wireless strain sensors based on patch antenna and RLC resonators whose frequency shift is mainly due to the strain induced dimension change.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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