Development of Low Power Anisotropic Magnetoresistive (AMR) Wireless Magnetometer for Earth’s Magnetic Field Measurement

Author:

Zainal Abidin Ahmad Faizal1,Jusoh Mohamad Huzaimy1,Al Junid Syed Abdul Mutalib2

Affiliation:

1. Universiti Teknologi MARA (UiTM)

2. Universiti Teknologi MARA

Abstract

Magnetometer is an instrument to measure Earth’s magnetic field magnitude. Microelectromechanical system (MEMS) magnetic sensor is implemented in the device system since it consists of multi-axis magnetic field sensing driven in a single microchip physical scale at low power consumption. The magnetometer is equipped with built-in data logger system as an automatic data storage system to overcome data loss. The Anisotropic Magnetoresistive (AMR) sensor is the best MEMS magnetometer sensors, since it consumes low power (3.3Vdc), small physical size (less than 8.1mm3) and considerable 200nT resolution for Earth’s magnetic field sensing. The magnetometer consumes 5.0Vdc for complete system operation. The instrument device is useful for scientific and geophysical field to observe and measure geomagnetic field magnitude, where the measurement could be taken anywhere around the globe. The mobile wireless magnetometer was tested and experimental measurement was performed at Faculty of Electrical Engineering, Universiti Teknologi MARA, Selangor, Malaysia (coordinate: 3.07°N, 101.50°E).

Publisher

Trans Tech Publications, Ltd.

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Anisotropic magnetoresistive transducers on the basis of a self-aligned structure;Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques;2017-03

2. Shape-coupled magnetoresistive structures: a new approach to higher sensitivity;Technical Physics Letters;2016-05

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