%0 Journal Article
%@ 0924-4247
%A Giang, D.T.H.
%A Duc, P.A.
%A Ngoc, N.T.
%A Duc, N.H.
%A VNU-UET,
%D 2012
%F SisLab:118
%J Sensors and Actuators A: Physical
%K Multiferroics
%N 0
%P 78 - 82
%T Geomagnetic Sensors based on Metglas/PZT Laminates
%U https://eprints.uet.vnu.edu.vn/eprints/id/eprint/118/
%V 179
%X A potential geomagnetic-field sensor is proposed on the basis of an optimal 2D configuration of magnetoelectric Ni-based Metglas/PZT laminates. This sensor can perfectly serve to measure both the strength and the orientation of the earth's magnetic field. An incredibly high ME-voltage response of 0.871 V/Oe to the geomagnetic field with a resolution of 3 × 10−4 Oe has been achieved for composite laminates with a size of 15 mm × 1 mm. With respect to the field inclination, an angular sensitivity of 3.86 × 10−3 V/degree and an angular resolution of 10−1 degree have been determined. This simple and low-cost magnetic-field sensor is promising for applications not only as novel smart compasses and in global positioning devices, but also as magnetic biosensors.