A Sigma-Delta closed-loop digital microfluxgate magnetometer

This paper presents the concept and the design of a new architecture for microfluxgate sensors. An innovative low-pass architecture based on pulsed excitation is presented, with a ΣΔ-based closed-loop measurement circuit including digital and semi-digital filters. While the total power consumption i...

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Bibliographic Details
Main Authors: Gayral, F., Delevoye, E., Condemine, C., Colinet, E., Mieyeville, F., Gaffiot, F.
Format: Conference Proceeding
Language:English
Subjects:
Coils
Delta-sigma modulation
Digital filters
Frequency
Magnetic sensors
Magnetometers
Permeability
Pulse measurements
Sensor phenomena and characterization
Temperature sensors
Online Access:Request full text
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Summary:This paper presents the concept and the design of a new architecture for microfluxgate sensors. An innovative low-pass architecture based on pulsed excitation is presented, with a ΣΔ-based closed-loop measurement circuit including digital and semi-digital filters. While the total power consumption is reduced to about 20mW, it also allows a power/resolution tradeoff for a digitally-controlled tunable magnetometer.
DOI:10.1109/ICECS.2006.379779