I’ve defined this precisely in this article:
This article clarifies the often confused electromagnetic characteristics of resonant versus pulsed devices. Many vendors inaccurately describe and market “resonant” devices as “pulse” devices.
On a Magnapulse, the intensity knob varies the “voltage,” hence the power. Higher power stores more energy in the capacitor which results in a greater current, which causes a stronger “pulse” with more energy.
At low power levels, a small spark gap releases less energy per pulse. Each 200 ns pulse fires at about 2KV, and has around 500 Amperes of instantaneous current (estimate). At all levels, the magnetic field is a function of both the instantaneous current, and the magnetic geometry of the probe, which relates to the “shape” and the number of turns. At low levels with the butterfly probe, your unit creates about a 200 ns pulse, with about .25 Teslas of field. The waveform discussion under “Ringers” section of the article describes your device accurately.
At high power, the pulse current reaches around 10,000 Amperes, which, depending on probe geometry and inductance, creates a field ranging from 5 Teslas to 10 Teslas (zeta probe).
In a pure sense, MagnaPulse is neither AC or DC, it is both. It works by briefly creating a 200 nanosecond DC pulse; a recurring DC pulse is technically an AC signal. So in a sense, it is both.
The voltage output is not an appropriate measurement. The units for magnetic fields are Gauss and Tesla. A Tesla is 10,000 gauss. A changing magnetic field (as with a pulse) has the potential to create or induce a voltage but has no voltage by itself. The coupling between a field and nearby material (tissue), produces inductance, which causes an electricity to run backwards in the nearby material.
This “backwards” electricity — in the “pulse” format — is what produces the effects you observe with your device. So the functionally correct measurement is that your device is a ~200ns, 5 Tesla pulse which is indirectly determined by the probe geometry, and power capacity of your unit, and how the probe is coupled to the tissue.