EMG project

An EMG, or electromyogram, is a measurement of the electricity produced by the movement in muscle tissue. Three electrodes will be used as sensors to provide input voltage to the circuit, and the output voltage will provide a reading of muscle activity. The stages of the circuit are as follows: an instrumentation amplifier, a band pass filter, and a non-inverting amplifier. The instrumentation amplifier provides high input impedance to match the high output impedance of skin. The band pass filter removes frequency content out of the bandwidth of the EMG. Finally, the non-inverting amplifier provides enough gain to make the small EMG signal large enough to be usable.