LP - modulé en longues périodes
The LP waveform provides an MF signal for 5 seconds. Then over the next
2.5 seconds the other phase of the 50Hz rectified signal is smoothly
increased in amplitude to give a DF signal for a further 5 seconds. Finally,
the signal returns to MF by smoothly reducing one phase of the rectified
signal over the next 2.5 seconds. The complete sequence takes 15
seconds.
Part of the LP waveform showing how the alternate phase increases in
amplitude is shown above.
RS – rythme syncopé
The RS waveform is 1 second of MF followed by 1 second of zero output,
this sequence being repeated continually.
Polarity
The above waveforms exhibit Pos (+) polarity as they all travel above the
ground (zero volts) level (equivalent to the flat part of the waveforms). The
polarity switch enables the user to reverse this Neg (-) so that the above
waveforms would be rendered ‘upside-down’. A third option is Auto-
reverse, in which the polarity automatically reverses halfway through the
selected treatment time.
To Next Page
Loading...
