Conducted second lab experiment of Electrooculogram (EOG) Measurement on Thursday (09/02/12) at HPL 209. The goal of the experiment is to acquire and control the output signal from KL-75003 Electrooculogram (EOG) Module. The output was fed to Digital Multimeter and Digital Oscilloscope. I was assisted by my classmate, Ms. Dalilah.
Experimental Results:
Output to Digital Oscilloscope
 |
Yellow signal = Left & Right (eye movement)
Blue signal = Up & Down (eye movement)
|
Output to Digital Multimeter
 |
| Subject's eye move to LEFT |
 |
| Subject's eye move to RIGHT |
 |
| Subject's eye move UP |
 |
Subject's eye move DOWN |
LEFT eye movement gave positive reading (3.7mV) on Digital Multimeter while RIGHT, negative (-3.5mV). UP and LOW eye movement gave both negative reading where either one suppose to give a positive value. This probably due to electrode placement error or some other reason that yet to be discover on the next lab session.
Analysis:
The human eye is polarized, with the front of the eye being positive and the back of the eye being negative, caused by a concentration of negatively charged nerves in the retina on the back of the eye.
Good hypothesis you got there..now with the result i think you can already think about block diagram of this device.post the diagram on your next post
ReplyDelete