Skip to main content

Advertisement

Table 2 Frequency characteristics of MGF

From: The ARASE (ERG) magnetic field investigation

  ± 8000 nT range ± 60,000 nT range
X Y Z X Y Z
Analog part
 Noise density @ 1 Hz (\({\text{pT}}/\sqrt {\text{Hz}}\)) 8.9 9.5 10.1 8.4 8.7 7.7
 Noise RMS in 0.1–10 Hz (pT) 36.6 34.5 39.7 33.1 34.1 32.2
 Cutoff (Hz) 275 213 275 326 326 326
 Time delay @ 1 Hz (msec) 0.889 1.109 0.924 0.426 0.438 0.423
 Error in 1–107 Hz (μsec) < 35 < 20     
Digital part
 Cutoff (Hz)
  256 Hz sampling 103.5
  128 Hz sampling 55
  64 Hz sampling 28
  32 Hz sampling 14