How to compare performace of EMG electrodes?
As you are already aware, that dry-contact electrode for surface EMG is subject to many variables -- skin prep, skin impedance, hair, sweat, positioning, effort, patient anatomy and more.
It would be challenging to build an accurate anatomical simulator including all these variables -- probably a PhD dissertation's worth of work.
Instead, I'd suggest a short cut: &quot;A/B Testing&quot;. Using yourself, or a volunteer, as the subject, compare two competing electrode designs. Install them as close together as possible over the muscle area of interest. Record the data from both simultaneously, and compare for signal strength (or SNR). Then, switch their positions and repeat.
If you have many possible designs, follow a binary tree (like a sports tournament) to determine the winning design.