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. 2016 Jun 9;(112):53869. doi: 10.3791/53869
Coil dimensions Windings Coil below sample Coil above sample
Coil R1 [mm]a W [mm]b H [mm]c No. of windings Wire-Ø [mm] R [Ω]d L [mH]e R [Ω]d L [mH]e
Measurement 1.0 4.0 1.7 2 × 600 0.08 47.67 0.95 47.66 0.95
Excitation 3.8 8.5 1.0 476 0.10 29.90 1.56 29.70 1.45
Driver 5.0 8.5 5.0 2,000 0.12 190.75 36.90 141.28 37.90
aR1 is the inner radius of the coil. The average radius is R1+H/2, the outer radius is R1+H. 
bW is the width of the coil, i.e., the cross section of the windings.
cH is the height of the coil windings.
dR denotes the Ohmic resistance at DC. In case of the measurement coils, it is the series resistance of both coils.
eL denotes the inductance, measured with an inductance meter at 1 kHz.