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Menopausal women have hot flashes, which cause discomfort, sleep disturbance, and work interruption. Therapeutic drug testing requires objective measurement of hot flashes.
The project is to develop a miniature skin color sensor to record hot flashes, or, to say precisely, a device to detect a change in skin color, as skin turns red during hotflash.
The working principle of the device base on the difference of light absorbed by different colors: black absorbs light the most while white reflects most of the light. The difference of light reflected can be picked up as an electric signal and recorded.

From left: Joseph Yuen, Patrick Kurkiewicz, Jack Ho, Brian Ginter
Patrick was doing some exercise to test how the device reacted towards a change in skin color.

Our final device Left: Top view of the device Right: Size comparison of the device between quarter and a mouse
| Week | Reporting Period Beginning | Activities |
|---|---|---|
| 1 | September 7 | First team meeting, team roles assigned |
| 2 | September 14 | Contact client, start background research |
| 3 | September 21 | Continue background research, start working on PDS |
| 4 | September 28 | Brainstorm designs and keep the PDS updated |
| 5 | October 5 | Keep on brainstorming, start ordering essential electronics part, work on midterm presentation |
| 6 | October 12 | Mid-term presentation with completed PDS |
| 7 | October 19 | Mid-term report completed, start working on circuits. |
| 8 | October 26 | Start building a simple prototype |
| 9 | November 2 | Work on final design |
| 10 | November 9 | Work on final design |
| 11 | November 16 | Work on final design |
| 12 | November 23 | Thanksgiving Break |
| 13 | November 30 | Prototype finished, poster presentation and paper |
| 14 | December 7 | Final Poster Presentation |
| 15 | December 14 | Final meeting with advisor |
| PDS(10/17) (Oct 17 2007, 19 kb) | |
| Mid-Semester Presentation (Oct 19 2007, 301 kb) | |
| Mid-Semester Report (Oct 24 2007, 120 kb) | |
| Final Poster (Dec 11 2007, 325 kb) | |
| Final Report (Dec 12 2007, 469 kb) |