Helmholtz coils (moment measurement) specifications

 FH-2.5 FH-6 FH-12
Calibration accuracy 0.75%
Inside diameter 2.5 in 6 in 12 in
Coil resistance (approx) 35 Ω 110 Ω 140 Ω
Operating temperature range 0 ºC to 60 ºC
Coil constant (approx) 0.013 Wb·cm/V·s 0.016 Wb·cm/V·s 0.047 Wb·cm/V·s
Input resistance (fluxmeter) 10 kΩ 100 kΩ 10 kΩ 100 kΩ 10 kΩ 100 kΩ
Range (approx) 390 µWb·cm 3.9 mWb·cm 480 µWb·cm 4.8 mWb·cm 1.4 mWb·cm 14 mWb·cm
 39 µWb·cm 390 µWb·cm 48 µWb·cm 480 µWb·cm 140 µWb·cm 1.4 mWb·cm
FH-2.5 FH-6
FH-12