16
Electrode Areas
9031E017 = 0.58 cm2
9013L036 = 0.39 cm2
An example
:
9013L036 surface stimulation electrode, felt tips, stimulus frequency 2 Hz, pulse width 0.2 ms:
𝐽𝐽
=
√
2 × 0.0002 ×
𝐼𝐼
0.39
𝑐𝑐𝑐𝑐
2
<
2
𝑐𝑐𝐴𝐴
𝑐𝑐𝑐𝑐
2
𝐼𝐼
< 39
𝑐𝑐𝐴𝐴
Stimulation Pulse Terminology
The term “pulse duration” or “pulse width” refers to the length of time from point A to point B. The “pulse amplitude” refers to the output
level reference from points C and D with the rated load. See Figure 1.
Figure 1
Accuracy of Controls
Stimulator values are determined by the operator based on the electrophysiological responses and the subjective reaction of the patient to the
stimulus, therefore an accuracy of ±30% pro vides acceptable levels for safe use of this equipment in the intended applications.
