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

Henry Rimminen; Jukka Kyynäräinen

doi:10.1063/1.4807718

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

Henry Rimminen^*
, Jukka Kyynäräinen

^*Corresponding author for this work

VTT (former employee or external)

Research output: Contribution to journal › Article › Scientific › peer-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 language	English
Number of pages	4
Journal	Review of Scientific Instruments
Volume	84
Issue number	5
DOIs	https://doi.org/10.1063/1.4807718
Publication status	Published - 2013
MoE publication type	A1 Journal article-refereed

Keywords

MEMS readout
low noice preamplifier
magnetic field measurement

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1063/1.4807718

https://publications.vtt.fi/julkaisut/muut/2013/OA-Note_Readout.pdf

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",

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publisher = "American Institute of Physics (AIP)",

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T1 - Note: 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

SN - 0034-6748

VL - 84

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 5

ER -

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

Abstract

Keywords

UN SDGs

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