This project is a detailed design proposal for a multi-modal biopotential amplifier supporting ECG, EMG, and EOG. The focus is on safe, low-noise instrumentation and a validation plan suitable for a senior design capstone.
Multi-Modal Biopotential Amplifier
BME 493 design proposal for a multi-modal biopotential amplifier supporting ECG, EMG, and EOG.
Key Reminders
- Describe the front-end requirements for ECG, EMG, and EOG channels.
- Explain noise, CMRR, and safety constraints for biopotential systems.
- Outline the test plan and validation strategy from the proposal.
Technologies
Design Goals
The amplifier is designed to acquire ECG, EMG, and EOG signals with a single configurable platform. Requirements include high CMRR, low noise, and patient safety isolation.
System Architecture
A modular analog front end supports channel-specific filtering and gain staging, followed by digitization for downstream analysis.
c code
Code example forthcoming
Digital gain and calibration routine.
Analog Front End
The proposal specifies instrumentation amplification, notch filtering for line noise, and bandpass filters tailored to ECG, EMG, and EOG ranges.
Testing and Validation
Validation includes bench signal injection, noise measurements, and comparison to reference sensors across modalities.
Demo and Next Steps
Future work includes firmware integration, enclosure design, and pilot data collection for each modality.