I'm working on building an acquisition system for sEMG signals. The problem I'm facing is how can I reliably measure the performance of different designs? Obviously I can just put the electrodes to my arm and see the signals on the oscilloscope, but that's not very objective way. The quality of signal can be affected by things like:
- position of the electrode on the muscle
- amount of sweat on the skin
- how strongly I contract the muscles
- muscle fatigue
I would like to have some sort of artificial muscle that I could attach the electrodes to, and that would always generate the same, repeatable signal. How can I do it?
For testing stuff like filtering software and hardware I can solder wires in place of electrode plates and connect them to signal generator, but I would like to do the end-to-end testing of the complete system.