Extraction Envelope - EMG Signal - Myo Armband Forearm

How to get Envelope Extraction from EMG signals generated from Myo Armband sensors. The EMG signal comes from 7 different hand movements. This digital signal processing can be used to determine the movement of the robotic arm to be made.

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Myo Armband

The Myo armband is a gesture controller that triggers a variety of actions on the computer based on the contractions of your muscles and the movements of your arm.

Myo Armband on Forearm

Raw Data Signal

Myo Armband will record EMG signal from 8 different angle, and give 8 point of view to record EMG from different handshapes or handmovements. Raw data will save to csv and you can process it to DataFrame using Pandas.

Envelope Extraction

In physics and engineering, the envelope of an oscillating signal is a smooth curve outlining its extremes The envelope thus generalizes the concept of a constant amplitude into an instantaneous amplitude. The figure illustrates a modulated sine wave varying between an upper envelope and a lower envelope. The envelope function may be a function of time, space, angle, or indeed of any variable.

Here we can use the data envelope to further project to make bionic arm from action potential from hand nervous system.