Abstract

A novel micromachined fluxgate sensor with integrated solenoid coils and amorphous alloy core is developed. The ultra low power consumption is achieved due to amorphous alloys ribbon materials and optimized core structure. The device exhibits a power consumption of 2.4mW, a sensitivity of 55V/T and a linear range of -150μT-150μT as excitation current of 40mA at 40kHz.

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