156B Week 4

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

• • Test bed is currently still under modification

  • Risk reduction tests are still being conducted for temperature uniformity

  • Flow analysis may be conducted

Accomplishments from Previous Week

• • Heat sensor risk reduction for temperature uniformity

  • Technically, compact fan heater is sufficient for heating needs

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

• • Modify test bed setup to allow for more turbulent and/or stronger airflow for temperature uniformity

  • Validate a proof of concept design from risk reduction

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

• • Add more annotations to photos of the stage controller for clarity

    • Will be taken into consideration in next ppt presentation

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

• • Try to use more 3D printed parts for testing to save time

    • Test bed incubator and housing elements are 3D printed for now

  • Test for temperature uniformity with an assortment of thermocouples/sensors

    • Risk reduction was run with 9-10 thermocouples to test for consistency

  • Can a test be run to see if the stage controller concept works?

    • Risk reduction test was run with multiple thermocouples and a compact fan heater

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

• • More explanation/clearer labeling of diagrams and setup

  • Allocate more time/go more in-depth with slides

  • Increase visibility and decrease word density on slides

  • Reiterate the importance of the stage controller

Risks and Areas of Concern

• • Openings in the bottom of the enclosure due to gaps in specimen adapter

  • Complications related to pressure of air flow due to tubing

Resources or Information Required but not Available

• • How to use flow simulations in CAD

Schedule

• • Find efficient method to distribute temperature within the enclosure uniformally

    • Simulations and/or additional tests

  • Validate proof of concept

Budget (list amount spent and amount remaining)

• • Amount Spent:

  • To date: ~$375

  • Amount Remaining:

    • Highest Possible (assuming $5000 reserve): $4625

    • Lowest Possible (assuming $3000 reserve): $2625

Progress on Report and Webpage

• • Working on Applicable Standards section (Draft due Friday 4/27/18)

  • Webpage is still being updated