Signal Condition and Acquisition System for a Low Cost EMG Based Prosthetic Hand

The rehabilitation process for the physically challenged people is a real challenge and concern where technology has not yet reached all sections of the society. This paper presents a novel and a low cost multi finger Robotic prosthetic hand based on the principle of Electromyography (EMG). A three channel EMG sensor is placed across the forearm to detect the voluntary actions of the superficial muscles in the forearm. The low frequency interference and noise in the signal was removed using sensor module that eliminates the need for high end processor and bringing down the cost. The unique nature of this prototype is that, it is adaptable to different people just by adjusting a potentiometer in the sensor module. The proposed prototype of the robotic prosthetic hand is a low cost, non-invasive, painless solution for prosthesis which is capable of performing some basic actions.