156B Week 4

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

• • Nebulizer received and fabrication of prototype 1 has started

  • Arduino code and configuration are being workshopped to include a push button to actuate the valve

  • 2 team members added: Gaoge and Dingran

Accomplishments from Previous Week

• • Air tube, tee, and fittings purchased for prototype 1

  • Nebulizer ordered and shipped

  • A successful test of solenoid valve controlled by Arduino

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

• • Have the Nebulizer fully functional - Donghyun, Ziliang, Gaoge, Dingran

  • Complete sections of the final report - Mandy, Emilee

  • Gain access to high speed camera - Team

  • Test nebulizer with camera - Team

  • Finalize Arduino code - Donghyun

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

• • In person: There were no updates on the nebulizer shipment which was ordered through the Sponsor's department so the Sponsor asked the team to let him know sooner if we experience a delay.

  • The team will contact the sponsor in the future if there are no updates for longer than 3 days

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

• • In person: Need a way to accurately measure droplet size with clear criteria for success or failure

  • We are in pursuit of a high speed camera to measure the droplets and spray pattern. We have talked to Wayne Neilson from the Nanoengineering lab in SME who knew of a micron scale high speed camera in Dr. Vecchio's lab.

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

• • No comments from other students

Risks and Areas of Concern

• • We still do not have access to a high speed camera, so we will have to use the less accurate route with the AmScope if there is no alternative

Resources or Information Required but not Available

• • High Speed camera availablilty in the MAE department

Schedule

Budget (list amount spent and amount remaining)

• • Nebulizer (5): $20.00

  • Vinyl tube: $3.25

  • Tee fitting: $2.49

  • Air hose repair kit: $3.89

  • Spray gun: $26.99

  • Remaining budget: $6,443

Progress on Report and Webpage

• • Report: Completed through week 3 requirements including "Impact on Society"

  • Webpage: Updated with new members