Active High-Density EMG electrode array
Active High-Density EMG electrode array
130 channel array with 5 mm inter-electrode distance.
Special goldplated electrode-tip allows operation without electrode gel.
Unique none invasive EMG measurements.
Multi-electrode array provides more data than conventional EMG needles.
EMG signals are measured with a High density array of gold plated pins used as dry electrodes pressed on the skin. No electrode gel is used because this would short the space between the closely spaced electrodes (5mm) Because the electrodes are simply pressed on the skin, very high electrode impedances (up to 1MOhm) can be found. However, thanks to BioSemi's high quality battery powered front-end, excellent signal quality is still assured (noise is smaller than 10uVpp) even with these difficult electrodes. The array is developed as an alternative to invasive methods like needle electrodes. The array setup provides a lot of extra information about the EMG topography.