Note: Readout of a micromechanical magnetometer for the ITER fusion reactor

Henry Rimminen (Corresponding Author), Jukka Kyynäräinen

    Research output: Contribution to journalArticleScientificpeer-review

    1 Citation (Scopus)

    Abstract

    We present readout instrumentation for a MEMS magnetometer, placed 30 m away from the MEMS element. This is particularly useful when sensing is performed in high-radiation environment, where the semiconductors in the readout cannot survive. High bandwidth transimpedance amplifiers are used to cancel the cable capacitances of several nanofarads. A frequency doubling readout scheme is used for crosstalk elimination. Signal-to-noise ratio in the range of 60 dB was achieved and with sub-percent nonlinearity. The presented instrument is intended for the steady-state magnetic field measurements in the ITER fusion reactor.
    Original languageEnglish
    JournalReview of Scientific Instruments
    Volume84
    Issue number5
    DOIs
    Publication statusPublished - 2013
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    fusion reactors
    Fusion reactors
    Magnetometers
    magnetometers
    MEMS
    readout
    Magnetic field measurement
    microelectromechanical systems
    Operational amplifiers
    Crosstalk
    Signal to noise ratio
    Cables
    Capacitance
    Semiconductor materials
    crosstalk
    Bandwidth
    Radiation
    cables
    elimination
    signal to noise ratios

    Keywords

    • MEMS readout
    • low noice preamplifier
    • magnetic field measurement

    Cite this

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    title = "Note: Readout of a micromechanical magnetometer for the ITER fusion reactor",
    abstract = "We present readout instrumentation for a MEMS magnetometer, placed 30 m away from the MEMS element. This is particularly useful when sensing is performed in high-radiation environment, where the semiconductors in the readout cannot survive. High bandwidth transimpedance amplifiers are used to cancel the cable capacitances of several nanofarads. A frequency doubling readout scheme is used for crosstalk elimination. Signal-to-noise ratio in the range of 60 dB was achieved and with sub-percent nonlinearity. The presented instrument is intended for the steady-state magnetic field measurements in the ITER fusion reactor.",
    keywords = "MEMS readout, low noice preamplifier, magnetic field measurement",
    author = "Henry Rimminen and Jukka Kyyn{\"a}r{\"a}inen",
    note = "Project code: 75672",
    year = "2013",
    doi = "10.1063/1.4807718",
    language = "English",
    volume = "84",
    journal = "Review of Scientific Instruments",
    issn = "0034-6748",
    publisher = "American Institute of Physics AIP",
    number = "5",

    }

    Note : Readout of a micromechanical magnetometer for the ITER fusion reactor. / Rimminen, Henry (Corresponding Author); Kyynäräinen, Jukka.

    In: Review of Scientific Instruments, Vol. 84, No. 5, 2013.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Note

    T2 - Readout of a micromechanical magnetometer for the ITER fusion reactor

    AU - Rimminen, Henry

    AU - Kyynäräinen, Jukka

    N1 - Project code: 75672

    PY - 2013

    Y1 - 2013

    N2 - We present readout instrumentation for a MEMS magnetometer, placed 30 m away from the MEMS element. This is particularly useful when sensing is performed in high-radiation environment, where the semiconductors in the readout cannot survive. High bandwidth transimpedance amplifiers are used to cancel the cable capacitances of several nanofarads. A frequency doubling readout scheme is used for crosstalk elimination. Signal-to-noise ratio in the range of 60 dB was achieved and with sub-percent nonlinearity. The presented instrument is intended for the steady-state magnetic field measurements in the ITER fusion reactor.

    AB - We present readout instrumentation for a MEMS magnetometer, placed 30 m away from the MEMS element. This is particularly useful when sensing is performed in high-radiation environment, where the semiconductors in the readout cannot survive. High bandwidth transimpedance amplifiers are used to cancel the cable capacitances of several nanofarads. A frequency doubling readout scheme is used for crosstalk elimination. Signal-to-noise ratio in the range of 60 dB was achieved and with sub-percent nonlinearity. The presented instrument is intended for the steady-state magnetic field measurements in the ITER fusion reactor.

    KW - MEMS readout

    KW - low noice preamplifier

    KW - magnetic field measurement

    U2 - 10.1063/1.4807718

    DO - 10.1063/1.4807718

    M3 - Article

    VL - 84

    JO - Review of Scientific Instruments

    JF - Review of Scientific Instruments

    SN - 0034-6748

    IS - 5

    ER -