| ABSTRACT |
This developed EMG acquisition system uses surface EMG electrodes for EMG signal detection. In the design of the EMG acquisition circuit, the EMG signal is amplified in two stages to convert it into an observable scale. The inheret noise acquiredfrom the power line of 50 Hz frequency is eliminated with a single hybrid IC notch filter. Then, the rectification and low pass filter modules will convert the EMG signal to a linear envelop waveform. This signal then sampled by a signal processing module. The analogue linear envelop EMG is sampled into a 24 bit digital data. An algorithm is developed and coded to send the digital data into the computer. The digital EMG data is then reassembled and displayed using a software scope on the computer.
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