Novel dynamic force sensing system using magnetostrictive energy harvester

Takahiro Yamazaki, Yasubumi Furuya, Wataru Nakao, Seiichi Hata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dynamic force sensors play a key role in emerging smart technologies that can measure various types of human motions. Magnetostrictive force sensors are the most promising, lightweight, and reliable sensing technologies; however, an in-depth understanding of the sensing mechanism is still lacking. In this study, we focus on magnetic Barkhausen noise (MBN), which is generated by the inverse magnetostriction effect upon impact loading. Further, the stress-induced MBN characteristics of Fe-Co alloy/epoxy composites were investigated using a cyclic compression test. By measuring and analyzing MBN signals in magnetostrictive/epoxy resin composites, it was revealed that the root mean square value of MBN increased linearly with the increase in the stress rate. Additionally, we observed that the MBN outbreaks were affected by the magnetostriction constant. The proposed MBN force sensor system is expected to achieve high sensitivity, wide measurement range, and downsizing.

Original languageEnglish
Title of host publicationMHS 2019 - 30th 2019 International Symposium on Micro-NanoMechatronics and Human Science
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728126746
DOIs
Publication statusPublished - 2019 Dec 1
Event30th International Symposium on Micro-NanoMechatronics and Human Science, MHS 2019 - Nagoya, Japan
Duration: 2019 Dec 12019 Dec 4

Publication series

NameMHS 2019 - 30th 2019 International Symposium on Micro-NanoMechatronics and Human Science

Conference

Conference30th International Symposium on Micro-NanoMechatronics and Human Science, MHS 2019
CountryJapan
CityNagoya
Period19/12/119/12/4

ASJC Scopus subject areas

  • Biomedical Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Modelling and Simulation
  • Instrumentation

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