Instruments
Searchcoil Magnetometer
Variations in the magnetic field at South Pole Station are studied using two different magnetometers. Rapid fluctuations in the geomagnetic field (with periods a fraction of a second) are measured with a
searchcoil magnetometer, or micropulsation detector, consisting of a mu-metal core surrounded by many thousands of turns of wire. The detector for a single axis is about 6-feet long, and about eight inches in diameter; two perpendicular axes measure the horizontal components of
dB/dt at South Pole and McMurdo Stations. The project is S-102, and the PI is Dr. R.L. Arnoldy, University of New Hampshire.