Biomedical Instrumentation

Project Highlights

My passion for embedded systems and safety-critical applications led me to direct my elective studies towards improving my technical proficiency with electronics design while exploring my interest in biomedical applications.

These academic projects involve spectral analysis, signal acquisition and processing, noise reduction strategies and multistage amplifier design. I thoroughly enjoyed the experience and gain a strong foundation for electronics design.

Using the EEG System: on the blue lunchpack is our circuit and on the sides of my head are surface electrodes. On the computer screen is a recording of my brain waves. The signal is predominantly made up of alpha waves. Alpha waves measure between 8 and 12 Hz and indicate that I am feeling relatively calm and relaxed. Photo Credits to my lab partner, Kevin. Thank you for a great experience working on these labs together!

So what is an EEG anyways?

EEG stands for electroencephalography - it’s a means of measuring electrical activity in the brain using electrodes. Electrodes are devices that enable recording of electric currents.

In addition to designing the EEG sensor, I also designed a device that measures heart signals (the ECG/electrocardiogram sensor), a device that measures muscle signals (the EMG/electromyogram sensor), and a device that measures eye movement (the electrooculogram/EOG sensor).

Skills

Electronics Design Debugging Circuits

Tools

Embedded Systems Benchtop Development & Testing Equipment

Experience

Designed and implemented bioinstrumentational amplifiers for ECG, EMG, EEG and EOG.
Measured the performance of differential amplifier designs.
Performed spectral analysis of acquired data.

Work Samples

Have more questions? Check out my reports to learn more!