Development of Ground-Based Search-Coil Magnetometer for Near-Earth Space Research

  • Shin, Jehyuck (School of Space Research, Kyung Hee University) ;
  • Kim, Khan-Hyuk (School of Space Research, Kyung Hee University) ;
  • Jin, Ho (School of Space Research, Kyung Hee University) ;
  • Kim, Hyomin (Center for Solar-Terrestrial Research, New Jersey Institute of Technology) ;
  • Kwon, Jong-Woo (School of Space Research, Kyung Hee University) ;
  • Lee, Seungah (Department of Astronomy and Space Science, Kyung Hee University) ;
  • Lee, Jung-Kyu (School of Space Research, Kyung Hee University) ;
  • Lee, Seongwhan (School of Space Research, Kyung Hee University) ;
  • Jee, Geonhwa (Korea Polar Research Institute) ;
  • Lessard, Marc R. (Space Science Center, University of New Hampshire)
  • 투고 : 2016.10.21
  • 심사 : 2016.12.19
  • 발행 : 2016.12.31


We report on development of a ground-based bi-axial Search-Coil Magnetometer (SCM) designed to measure time-varying magnetic fields associated with magnetosphere-ionosphere coupling processes. The instrument provides two-axis magnetic field wave vector data in the Ultra Low Frequency or ULF (1 mHz to 5 Hz) range. ULF waves are well known to play an important role in energy transport and loss in geospace. The SCM will primarily be used to observe generation and propagation of the subclass of ULF waves. The analog signals produced by the search-coil magnetic sensors are amplified and filtered over a specified frequency range via electronics. Data acquisition system digitizes data at 10 samples/s rate with 16-bit resolution. Test results show that the resolution of the magnetometer reaches $0.1pT/{\sqrt{Hz}}$ at 1 Hz, and demonstrate its satisfactory performance, detecting geomagnetic pulsations. This instrument is scheduled to be installed at the Korean Antarctic station, Jang Bogo, in the austral summer 2016-2017.


연구 과제번호 : Study of magnetosphere-polar ionosphere upper atmosphere coupling

연구 과제 주관 기관 : Korea Polar Research Institute (KOPRI)


  1. C. Coillot and P. Leroy, Induction Magnetometers: Principle, Modelling and ways of improvement, Magnetic Sensors-Principles and Applications, InTech, (2012) pp. 45-48.
  2. Hyomin Kim, Development of Ground-Based Search- Coil Magnetometer Systems in the Polar Regions and Studies of Ulf PC 1--2 Wave Propagation in the Ionospheric Waveg, Proquest (2010).
  3. L. Harang, Terr. Magn. and Atm. Electr. 41, 329 (1936).
  4. R. R. Heacock, J. Geophys. Res. 72, 3905 (1967).
  5. J. A. Jacobs, Y. Kato, S. Matsushita, and V. A. Troitskaya, J. Geophys. Res. 69, 180 (1964).
  6. James Lenz and Alan S. Edelstein, IEEE Sensors Journal 6, 631 (2006).
  7. J. Kangas, A. Guglielmi, and O. Pokhotelov, Space Sci. Rev. 83, 435 (1998).
  8. J. E. Lenz, Proceedings of the IEEE 78, 973 (1990).
  9. Pavel Ripka, Magnetic Sensors and Magnetometers, Artech House (2001) pp. 57-64.
  10. B. Stewart, Phil. Trans. R. Soc. Lond. 151, 423 (1861).
  11. E. Sucksdorff, Terr. Magn. and Atm. Electr. 41, 337 (1936).
  12. Seran & Fergeaua, Review of Scientific Instruments 76, (2005) pp. 1-2.
  13. K. Takahashi, S. Ohtani, and B. J. Anderson, J. Geophys. Res. 100, 21929 (1995).
  14. S. Tumanski, Meas. Sci. Technol. 18, 35 (2007).
  15. World Data Center for Geomagnetism, Kyoto, Geomagnetic Data Service,