Geomagnetic sensor based on giant magnetoelectric effect

Zhai J., Dong S., Xing Z., Li J., Viehland D.
Department of Materials Science and Engineering, Virginia Tech., Blacksburg, VA 24061, United States

Abstract: Here, the authors report a new type of geomagnetic field sensor based on the giant magnetoelectric effect in Metglas/piezoelectric-fiber laminates that are wrapped with a coil. These sensors can measure quite precisely the value of both the Earth's magnetic field and its inclination. The geomagnetic field sensor does not require a dc magnetic bias and is driven by a 10 mA ac. Highly sensitive dc magnetic field variations of less than 10-9 T and angular inclinations of ≤ 10-5 deg can be detected, potentially offering opportunities for a small global positioning device. © 2007 American Institute of Physics.

Year: 2007
Source title: Applied Physics Letters
Volume: 91
Issue: 12
Art. No.: 123513
Cited by: 11
Link: Scorpus Link
Document Type: Article
Source: Scopus
Authors with affiliations:

1. Zhai, J., Department of Materials Science and Engineering, Virginia Tech., Blacksburg, VA 24061, United States
2. Dong, S., Department of Materials Science and Engineering, Virginia Tech., Blacksburg, VA 24061, United States
3. Xing, Z., Department of Materials Science and Engineering, Virginia Tech., Blacksburg, VA 24061, United States
4. Li, J., Department of Materials Science and Engineering, Virginia Tech., Blacksburg, VA 24061, United States
5. Viehland, D., Department of Materials Science and Engineering, Virginia Tech., Blacksburg, VA 24061, United States

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