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Metglas/PZT-Magnetoelectric 2-D Geomagnetic Device for Computing Precise Angular Position

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5 Author(s)
Duc, N.H. ; Dept. of Nano Magn. Mater. & Devices, VNU Univ. of Eng. & Technol., Cau Giay, Vietnam ; Tu, B.D. ; Ngoc, N.T. ; Lap, V.D.
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A magnetoelectric 2-D geomagnetic device for the precisely angular position computation is provided. The magnetic sensor module consists of two Metglas/PZT magnetoelectric 1-D sensors in an orthogonal arrangement. The sensor signals are excited and detected by a self-made digital lock-in amplifier. For mapping output sensor signals, normalization was performed on the operational module. Both spatial (azimuth and pitch) angles are then easily computed while rotating and/or swinging the sensor module. This simple and low-cost geomagnetic device is integrated with mobile transceivers for automatic determination and control of the latter antenna direction with respect to the position of the geostationary satellite in communication.

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Magnetics, IEEE Transactions on  (Volume:49 ,  Issue: 8 )