156B Week 2

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

• • Working on ordering major components (Flexi-force Sensors and shielded cables).

  • Completed Design Proposal Presentation.

  • Solidified design proposal and necessary components to implement/purchase.

Accomplishments from Previous Week

• • Completed Individual Component Analysis.

  • Met with Sam Ward and gained a better understand of project objectives/goals.

  • Determined a force sensor to use in design proposal.

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

• • If parts are received, begin calibrating Flexi-force sensor (team).

  • Begin analyzing force measurements and determine accuracy/resolution experimentally of sensors (team).

  • Continue working on portions of the report draft.

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

• • Dr. Sam Ward (collaborator) mentioned that possibly the easiest sensor to implement would be the Flex-force sensor, which was kept in mind for design proposal presentation and Individual Component Analysis.

  • Dr. Tom Liu (sponsor) said mechanically transferring force via fluid may be messy, inaccurate, and difficult to repeat, which was considered in Individual Component Analysis. 

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

• • Prof. Gillett suggested looking into optical pressure transducers, which we are doing.

  • Improvements for presentations (slide content, tables, numerical values) were implemented into the Design Proposal presentation.

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

• • None

Risks and Areas of Concern

• • Accuracy of Flexi-force sensor given on data sheet matches with experimental values.

Resources or Information Required but not Available

• • None

Schedule

• • Purchase materials (Flexi-force sensor, shielded cables, op-amps) during week 2

  • Experimentally determine resolution/accuracy of Flexi-force sensor outside MRI

  • Test Prototype in MRI

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • $600 (none spent)

Progress on Report and Webpage

• • Removed instructions from homepage.

  • Uploaded individual component analysis reports to the Reports section.