Week Seven Updates

This week, the alligator clamps were soldered to the stranded wires that were connected to the amplifier. The alligator clamps clamp onto the electrodes so the signals can be carried through the wire to the amplifier and data-aquisition system. The ideal place for electrodes was determined. The reference electrode will be placed on the neck. There will be two electrodes for each orbicularis occuli muscle around the eye. They will both be placed underneath the eye, one at the beginning of the muscle and the other at the end of the muscle. There are two electrodes for each muscle in order to capture the signal and to block out extra noise signal from the muscle.

In order to test signals, the electrodes were placed on the face and the amplifier was turned on. The signals were not being read in MATLAB because it was uncertain how to add multiple channels to detect multiple signals. When turned on, the amplifier became very hot and started to smoke, so it was turned off in order to avoid damage. These are problems that will be solved during the next week. 

The DAQ, amplifier, 9V batteries, and alligator clamps all connected by stranded wire.