Abstract
A magnetoelectric (ME) sensor of face-shear type is demonstrated based on the ME composite consisting of (PbMg0.33 Nb0.67O3)1-x-(PbTiO3)x piezoelectric single crystal (abbreviated as PMN-PT) and Metglas amorphous alloy. The face-shear strain is induced in PMN-PT via the magnetostriction of Metglas under a magnetic field, which generates an ME voltage through the d36 piezoelectric coefficient. The proposed sensor reveals a high ME coupling coefficient of 48.8 V/cm Oe at resonant frequency (∼ 107.5 kHz), which is self-biased with the capability to detect ac magnetic fields of 4.58 nT at 1 kHz and 10.43 pT at resonant frequency, respectively. The self-biased face-shear mode ME sensor exhibits great potential for weak magnetic field detection.
| Original language | English |
|---|---|
| Pages (from-to) | 22366-22372 |
| Number of pages | 7 |
| Journal | IEEE Sensors Journal |
| Volume | 23 |
| Issue number | 19 |
| DOIs | |
| State | Published - 1 Oct 2023 |
Keywords
- d36 piezoelectric coefficient
- face-shear mode
- magnetoelectric (ME) sensor
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