In what situations are the high gain pre-amplifiers beneficial?
• The high gain pre-amplifiers (APE-2000) are used when recording from deep lying muscles and/or when the level of muscle contraction (activity) is very low; basically in conditions where the signal is quite faint. • One aspect of the EMG signal should be noted. As the distance from the electrode to the muscle area of interest increases, the signal strength decreases, due to a phenomenon called tissue filtering. For more information see Important Factors in Surface EMG Measurement. • Please contact Bortec to see if high gain pre-amplifiers would benefit your EMG measurement application.
