Design and realization of fluxgate sensor signal processing unit

Wei Gao*, Guochen Wang, Qichao Zhao

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    2 Citations (Scopus)

    Abstract

    This paper firstly discusses the magnetic fluxgate sensor's principle of work, then conducts an in - depth analysis to the magnetic fluxgate sensor output signal from the aspect of its mathematical model, the paper proposes the second harmonic detecting method. In this way, the paper gives the implementation plan for the fluxgate magnetometer, and complete signal detection and processing circuit design of the closed - loop fluxgate sensor. The circuit modulates the fluxgate signal into direct voltage signals of a characterization of magnetic field size by resonance, second harmonic amplification, band - pass filtering and phase - check spread of second order Butterworth low - pass filter. To improve the dynamic performance of a magnetic field measurement and temperature stability, closed - loop circuit uses digital PID control method.

    Original languageEnglish
    Title of host publication2011 IEEE International Conference on Mechatronics and Automation, ICMA 2011
    Pages2386-2391
    Number of pages6
    DOIs
    Publication statusPublished - 2011
    Event2011 IEEE International Conference on Mechatronics and Automation, ICMA 2011 - Beijing, China
    Duration: 7 Aug 201110 Aug 2011

    Publication series

    Name2011 IEEE International Conference on Mechatronics and Automation, ICMA 2011

    Conference

    Conference2011 IEEE International Conference on Mechatronics and Automation, ICMA 2011
    Country/TerritoryChina
    CityBeijing
    Period7/08/1110/08/11

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