A Multi-channel and Extensible sEMG Acquisition System

To detect surface electromyography (sEMG) under the complex usage scenario, we developed a multi-channel and extensible sEMG acquisition system, which can flexibly change the gain and number of channels. The detection circuits use the improved connection type of electrodes and two stages of amplifiers, while software based on LabView is designed to control the acquisition process and store data. At last, the experiment results demonstrated that this system can realize generalized, large-scale and dynamic detection, acquisition and storage of sEMG signals.