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A Function Generator for Calibration of Electromagnetic-Field Recorders

  • ELECTRONICS AND RADIO ENGINEERING
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Abstract

A low-frequency function generator for calibrating measuring channels of electromagnetic-field recorders in the frequency range from one hertz to tens of kilohertz is described. One feature of the device is the stability and high-precision phase synchronization of the output signal with a coordinated universal time provided by a GPS/GLONASS receiver. The application of the developed device made it possible to increase the accuracy of calibration of the measuring channels of receivers in a very low frequency range and, as a consequence, the accuracy of measuring the phase velocities of artificial and natural electromagnetic signals of ultralow- and very-low-frequency bands.

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Authors and Affiliations

  1. Polar Geophysical Institute, 184209, Apatity, Murmansk oblast, Russia

    S. V. Pilgaev, A. V. Larchenko, M. V. Filatov, Yu. V. Fedorenko & O. M. Lebed

Authors
  1. S. V. Pilgaev
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  2. A. V. Larchenko
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  3. M. V. Filatov
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  4. Yu. V. Fedorenko
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  5. O. M. Lebed
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Corresponding author

Correspondence to S. V. Pilgaev.

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Translated by A. Seferov

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Pilgaev, S.V., Larchenko, A.V., Filatov, M.V. et al. A Function Generator for Calibration of Electromagnetic-Field Recorders. Instrum Exp Tech 61, 809–814 (2018). https://doi.org/10.1134/S0020441218060106

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  • DOI: https://doi.org/10.1134/S0020441218060106

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