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 -