PERANCANGAN DAN PEMBUATAN MODUL ECG DAN EMG DALAM SATU UNIT PC Sub Judul: PEMBUATAN RANGKAIAN EMG DAN PERANGKAT LUNAK EMG PADA PC

The ECG and EMG module is designed to implement two modules ECG and EMG into one unit. In addition, ECG and EMG module is built to be more efficient in the use of components because of its modules in one unit. For discussion will be divided into two discussions, one is about the making of EMG hardware and software modules. In making a module that uses EMG signals derived from muscle. The signals were detected on the skin surface is very low at the millivolt range, so that should also be strengthened several times. Characteristics of the EMG signal has a frequency range between 20 Hz - 500Hz and voltage range between 0.4 mV to 5 mV. In addition, EMG has a character unlike the ECG signal in the form of a wave pattern, but this signal is random and very messy, so take a few kinds of filters such as notch filter circuit with cut-off frequency of 50 Hz, Low Pass Filter with cutoff frequency of 500 Hz , and High Pass Filter 20 Hz, to filter the noise carried by reinforcement signals. So that the resulting EMG signal from this circuit a more perfect without the noise interference. Then the ADC converts the signal into digital data. Last will be sent to a PC using a USB to serial cable 232 to see the results it looks. The result is that the tool is already having an almost near the same range with BIOPACK MP-30 with the percentage of error for the measurement of peak peakto amounted to 26.67% while for the high percentage of the amplitude measurement error is 11.94%. Keyword : Modul EMG, Elektromyograph, Filter 500 Hz dan 20Hz, ADC, USB to Serial 23