The apparatus is powered by a Nickel cadmium battery, type Varta 5022, TR7/8, V7/8R (110mAh, 9V) or type "NIKA" (100mAh, 9V).
T
v - period of output electrical impulse variations (frequency is equal to 1/Tv);
t
p - length of positive part of impulse (defines intensity of treatment);
U
m+ - amplitude of positive part of impulse;
U
m- - amplitude of negative part of impulse;
t - time-axis.
Measurements are taken at the inner electrode relative to the outer.
Changes in the output impulse frequency during operation in the variable frequency mode are shown in fig. 2:
F - output electrical impulse frequency;
Fmax - maximum output electrical impulse frequency;
Fav - mean (average) output electrical impulse frequency;
Fmin - minimum output electrical impulse frequency;
T - frequency change period;
t - time-axis.
Maximum deviation (in percent) from the mean value is determined by the expression: (Fmax - Fav) x 100 / Fav.