Metglas-Enhanced Tube-Topology Magnetoelectric Magnetic Field Sensor

Author

Gillette, Scott M. ; Yajie Chen ; Fitchorov, Trifon ; Obi, Ogheneyunume ; Liping Jiang ; Hongbo Hao ; Harris, Vincent G.

Author_Institution

Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA

Volume

50

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

1

Lastpage

3

Abstract

Significant enhancement (160%) in sensitivity is demonstrated for an improved version of the quasi-1-D magnetoelectric (ME) magnetic field sensor design that employs the use of Metglas ribbons. The original device, which previously reported highest zero external biased sensitivity, has been improved upon to exhibit a zero-biased sensitivity of 7.43 mV/Oe when stimulated with a low frequency of 25 Hz and magnetic reference field of 10 mOe. In this improved design, Metglas ribbons are bonded to the exterior of the piezoelectric tube element to provide an increase in strain generation which in effect yields greater direct ME response and, therefore, higher sensitivity. Comparison is made between original and Metglas-enhanced devices.

Keywords

bonding processes; electric sensing devices; magnetic field measurement; magnetic sensors; magnetoelectric effects; metallic glasses; piezoelectric transducers; ME; Metglas ribbon; Metglas-enhanced device; bonding; external zero-biased sensitivity; frequency 25 Hz; metglas-enhanced tube-topology magnetoelectric magnetic field sensor; piezoelectric tube element; quasi1D magnetoelectric magnetic field sensor design; strain generation; Amorphous magnetic materials; Electron tubes; Magnetic separation; Magnetoelectric effects; Magnetostriction; Sensitivity; Wires; Enhanced sensitivity; magnetic field sensor; magnetoelectric (ME) composite; miniature; zero bias;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2329459

Filename

6971689