Digital Detection and feedback Fluxgate Magnetometer

J. Piil-Henriksen, José M.G. Merayo, Otto V Nielsen, H. Petersen, Jan Raagaard Petersen, Fritz Primdahl

    Research output: Contribution to journalJournal articleResearchpeer-review


    A new full Earth's field dynamic feedback fluxgate magnetometer is described. It is based entirely on digital signal processing and digital feedback control, thereby replacing the classical second harmonic tuned analogue electronics by processor algorithms. Discrete mathematical cross-correlation routines and substantial oversampling reduce the noise to 71 pT root-mean-square in a 0.25-10 Hz bandwidth for a full Earth's field range instrument.
    Original languageEnglish
    JournalMeasurement Science and Technology
    Pages (from-to)897-903
    Publication statusPublished - 1996

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