15
Technical specifications for Interferential (IF) mode
Waveform Bi-phase square pulse
Pulse
amplitude
Adjustable, 0
—70mA peak to peak at 1000 Ω Load each channel,
1 mA/Step
Pulse Rate
Channel I
— Fundamental frequency: 4000 Hz fixed
Channel 2-- Selectable frequency: 4001 to 4150 Hz
Interference frequency: 1 to 150Hz
Phase
Width
125 uS
P1
The pulse rate of the CH1I is fixed at 4000Hz; CH2 pulse rate is increased
from 4001 Hz to 4010 Hz in a cycle
time, and then decreased from
4010Hz to 4001Hz in
next set cycle time. In this program CH2 interference
frequency is varied from 1 Hz to 10Hz, cycle time (5 to 30 sec) is fully
adjustable. CH 2
pulse rate = Interference frequency
P2
The pulse rate of the CH1 is fixed at 4001 Hz, CH2 pulse rate is increased
from 4001Hz to 4150Hz in a cycle time, and then decreased from 4150Hz
to 4001 Hz in next set cycle time. In this program, CH2 interference
frequency is varied from 1 Hz to 150Hz, cycle time (5 to 30 Sec) is fully
adjustable. CH 2 pulse rate = Interference frequency
P3
The
pulse rate of the CH1 is fixed at 4000Hz; CH2 pulse rate is increased
from 4050Hz to 4150Hz in a cycle time and then decreased from 4100Hz
to 4000Hz in next set cycle time. In this program, CH2 interference
frequency is varied from 80Hz to 150Hz, cycle time (5 to 30 sec) is fully
adjustable, CH 2 pulse rate= Interference frequency
P4
The pulse rate of the CH1 is fixed at 4000Hz; CH2 pulse rate is
automatically varied in a cycle time. Interference frequency is increased
from its original setting to 60% in set cycle time, and then decreased from
60% to its original setting in next set cycle time
