https://www.phys-tec.de/elektrostimulation/elektrostimulation-kennzeichen-des-elektrischen-impulses/?lang=en
CHARACTERISTICS OF ELECTRICAL IMPULSES IN ELECTRO-STIMULATION. | PhysTec - Tecar Thrapie, TENS,...
The electrical impulse has a series of characteristics which define it, in a way that changing any of the parameters below will result in one type of current or
electrical impulseselectro stimulationcharacteristicstens