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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Jitao Zhang Ping Li Yumei Wen Xian Huang |
| Copyright Year | 2011 |
| Description | Author affiliation: The Key Laboratory for Optoelectronic Technology & Systems, Ministry of Education, China (Jitao Zhang; Ping Li; Yumei Wen; Xian Huang) |
| Abstract | A magnetoelectric (ME) laminate composite is fabricated by sandwiching one longitudinally magnetized Tb (Terfenol-D) magnetostrictive layer between two transversely polarized Pb(Zr,Ti)O (PZT) piezoelectric layers. This composite is quite sensitive to a small dc magnetic field variation (ΔH). Due to magneto-mechanical damping of Terfenol-D, the output voltage decreases as H increases. The correlation between H and magneto-mechanical damping coefficient is analyzed theoretically from the aspect of energy consumption, which accounting for the output voltage correlated reversely proportional to H. The experimental results show that measured voltage has a linear relationship to the applied small dc magnetic field, and the sensitivity limit is $2.64×10^{−8}T$ under resonance drive. These performances make the composite to be a promising material for coil-free dc magnetic field detection device. In comparison with previously reported traditional magnetic field sensors, the proposed architecture has: (i) avoiding to use the copper-coil as excitation source; (ii) taking advantage of the magneto-mechnical damping of Terfenol-D which is strongly dependent on H; (iii) an ability to detect dc or quasi-dc magnetic field. |
| Starting Page | 526 |
| Ending Page | 529 |
| File Size | 867498 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424492909 |
| ISSN | 19300395 |
| e-ISBN | 9781424492893 |
| DOI | 10.1109/ICSENS.2011.6127235 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-10-28 |
| Publisher Place | Ireland |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetoelectric effects Magnetostriction Magnetic resonance Magnetic fields Magnetic hysteresis Magnetic sensors |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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