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

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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).

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Periodical:

Edited by:

Ismail Musirin and Shahril Irwan Sulaiman

Pages:

714-718

DOI:

10.4028/www.scientific.net/AMM.785.714

Citation:

A. F. Zainal Abidin et al., "Development of Low Power Anisotropic Magnetoresistive (AMR) Wireless Magnetometer for Earth’s Magnetic Field Measurement", Applied Mechanics and Materials, Vol. 785, pp. 714-718, 2015

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August 2015

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