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A magnetoelectric laminate based passive micro‐displacement sensor
Author(s) -
Wu Zheng,
Zhang Jun,
Ma Ke,
Cao Yi,
Jia Yanmin,
Luo Haosu,
Zhang Yihe
Publication year - 2012
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201206481
Subject(s) - magnetostriction , displacement (psychology) , materials science , schematic , piezoelectricity , voltage , acoustics , optoelectronics , electrical engineering , composite material , physics , magnetic field , engineering , psychology , quantum mechanics , psychotherapist
A passive micro‐displacement sensor (for ∼μm displacement) was fabricated based on a magnetoelectric laminate, in which the displacement change can result in a change of the magnetic flux around the magnetoelectric sensor. The displacement measurement was realized by measuring the magnetoelectric output voltage. The displacement detecting coefficient was ∼2.5 mV/μm at a frequency of ∼1 kHz. This passive displacement sensor possesses the advantages of low cost, high resolution, low energy consumption and good linearity and has potential for application in future displacement detectors.Schematic diagram of the suggested micro‐displacement sensor based on magnetostrictive/piezoelectric magnetoelectric laminate. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)