Magnetic induction probe schematic, including the termination impedance ZT for measuring the probe voltage VP.
Magnetic induction probe circuit equivalent with shielded-twisted pair cabling, including the pickup loop impedance ZL, transmission line impedance Z0, termination impedance ZT, and high-voltage (or plasma) coupling CHV.
Lumped element equivalent circuit for no capacitive coupling between twisted pairs of the circuit in Figure 2 .
Photographs of the pickup loops for the (a) target probe and (b) calibration reference probe.
R-X data for the target probe and calibration probe from 1 kHz to 500 kHz.
Probe voltages for the calibration probe and target probe, measured in the same magnetic field. The boxes in the figure represent time intervals over which the calibration calculations were completed.
Gain and phase of the sensitivity for the calibration probe with high voltage coupling to the coil with VHV = 1000 V and Vp = 700 mV. Markers indicate SPICE predictions.
Magnetic field measurements, after frequency correction and integration for both probes.
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