156B Week 8

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Finalized the circuit of controller

  • Manufactured the water block

Accomplishments from Previous Week

• • Finalized the design of water block

  • Started to manufacture the water block

  • Search for the circuit compatible for the Peltier device

  • Purchased the components required for water block and circuit

  • Designed skin applicators

  • Ordered components for water cooling loop (pump, tubing, fittings, and water jug)

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Finalize the water block and test it (Josh and Khang)

  • Print the PCB (Jacob)

  • Manage to commute with two Arduino board (Jacob)

  • Implement the control method with cooling water block available (Zinan)

  • Design the control box (Josh)

  • Buy required components for control box (Josh)

  • Start the coding of IOS app (Zinan)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• • Sponsor not available this week to meet

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• • O-ring gland not designed to standards and had too sharp of corners (in person 2/20) (used Eriks o ring gland design manual to redesign o ring gland to standards and added a much smoother corner so o ring will not be pinched)

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Comments from Other Students in the Class (indicate date of comments and if via email or in person)

• • N/A

Risks and Areas of Concern

• • The performance of the control is not as good as expected

  • How to prevent the water from coming in contact with circuit

  • Since Peltier devices may increase temperature quickly, how to prevent such situation or how to prevent patient from touching the hot side

Resources or Information Required but not Available

• • N/A

Schedule

• • Describe upcoming milestone

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• Spent $342.58

• Remaining $2657.42

Progress on Report and Webpage

• • Working on the report and the second draft is due this Friday.