Abstract

The purpose of this study is to design a wearable, customizable and fully controlled prosthetic arm for upper-limb amputees. During this study we analysed different types of finger mechanisms linkage mechanism and cable mechanism and designed models accordingly. Generally there are some muscle impulses or EMG signals which are nerve signals that are developed in the residual limb of an arm or a leg amputees, our study comprises of recording these raw sEMG signal, applying a Fast Fourier Transform (FFT) and thereby rectifying it using a band pass filter and finally normalizing it by RMS envelope and redirecting them to a controller for actuation of the fingers for different grasping and gripping possible.

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