Low Cost Digital Thermometer and ECG Contact Person Amit Nimunkar Dept. of Biomedical Engineering Phone: 698-7413, Email: [email protected] Team Colleen Farrell (Team Leader) Tasha Benkovich (BSAC) Deborah Yagow (BWIG) Hallie Kreitlow (Communicator) Week February 12 to February 19, 2009 Problem Statement Emerging countries are in need of a durable, low cost digital thermometer to interface with innovative display technology. This device should incorporate circuitry with a human sensory interface. Last Week’s Goals - Obtain the ordered thermistors and test them in the lab - Research the best areas to take temperature on the body - Research the different options for the possible circuit and controller o i.e. one-supply op amps, capacitors, 555 timers, and microcontrollers - Research the conditions of the emerging countries in which the design may be used Accomplishments - Attended Medical Issues in Developing Countries seminar - Met with Mary Doherty and Luke Fortney from EWH to discuss project specifications that would be important o No disposable parts o Very rugged o No continuous monitoring o Should be oral with option for rectal - Practiced building an op amp circuit for a thermistor - Revised the PDS and problem statement with new information This Week’s Goals - Test thermistors and microcontrollers once they are delivered - Start brainstorming design options - Research conductive materials to transfer heat to thermistor - Decide whether to use wheatstone bridge or design alternate circuitActivities Date Activity Time (hrs) 2.12.09 Deborah,Hallie: Circuit Practice Colleen, Hallie Tasha: EWH seminar, circuit practice 1.5 2.5 2.13.09 Class Meeting 1.75 2.15.09 Deborah: Website work 1.0 2.18.09 Colleen: Research 1.5 2.19.09 Deborah: Research Hallie: Research Tasha: Research 0.25 1.0 1.0 Total Time (hours cumulative) Colleen 19.5 Tasha 16.25 Deborah 19.0 Hallie 20.25 Tentative Project Timeline Week ending: January February March April May Task 23 30 6 13 20 27 6 13 20 27 3 10 17 24 1 Product Development Background Research Brainstorm Decision matrix Final Design Prototype Testing Deliverables (due) PDS
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