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Signals from Body

Signals from Body. EMG (Electromyography) – electrical activity by skeletal muscles ECG (Electrocardiography) – electrical activity of the heart EEG (Electroencephalography) – electrical activity of the brain Pace signal – Signal from Pacemaker

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Signals from Body

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  1. Signals from Body • EMG (Electromyography) – electrical activity by skeletal muscles • ECG (Electrocardiography) – electrical activity of the heart • EEG (Electroencephalography) – electrical activity of the brain • Pace signal – Signal from Pacemaker • Respiration – study of impedance created from inhale/exhale

  2. Bandwidth of interest EMG Signal ~100mV ~5mV ECG Signal Max Amplitude ~5mV Pacemaker Signal EEG Signal ~1mV Respiration *Amplitude dependent on external current source 0.5Hz 20Hz 60Hz 120Hz 150Hz 500Hz 1 MHz 50Hz *Frequency ranges are estimates. Actual frequency range will depend on specific application Frequency

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