156B Week 2

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

• • Fabricated and validated PVDF sensors

  • Adhesion supplies ordered

  • DAQ testing in progress

Accomplishments from Previous Week

• • Met with Dr. Loh and Morgan for project scope clarification (4/2)

  • Established weekly meeting time of Wednesday 2pm with Dr. Loh and Morgan

  • Retrieved supplies from ARMOR Lab and distributed to team

  • Checked out all necessary materials from ARMOR Lab including 4 channel oscilloscope!

  • CAD for test stand and DAQ housing (Reuben)

  • CAD Acrylic face and sent to outside manuf. for production (Reuben)

  • Soldering kit ordered and received

  • Fabricated 4 new PVDF sensors (Kaitlynn)

  • Validated sensor parameters (Kaitlynn)

  • Soldered header pins to Teensy to kick off rapid prototyping process (Michelle)

  • Confirmed that and experimented with the capabilities of the NRF24L01 wireless transceivers (Michelle) 

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

• • Hand off PVDF sensors for adhesion and testing (Kaitlynn)

  • Fabricate graphene thin film sensor (Kaitlynn)

  • Send CAD to Armor Lab employee for test piece to be 3D printed--depends on Acrylic Face arrival (Reuben)

  • Adhere newly fabricated sensors to golf face and hand off for DAQ test (Reuben)

  • Develop signal conditioning (attenuation) circuitry for DAQ input (Chris)

  • Measure PVDF Signals using National Instruments DAQs and Teensy DAQ (Chris)

  • Continue testing DAQ types and make final DAQ design decision (Chris)

  • Pick up waveform generator from ARMOR lab (Chris)

  • Confirm compatibility between Teensy and NRF24L01 wireless transceivers (Michelle)

  • Choose which program and start skeleton code to interpret/analyze/display data (Michelle)

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

• • Dr. Loh received PVDF sheet and will drop off in ARMOR Lab (4/2 via Zoom); Chris picked it up from lab

  • Dr. Loh approved us to check out equipment from ARMOR Lab (4/2 via Zoom)

  • Dr. Loh suggests asking Han about Modal Hammer (4/2 via Zoom); Chris asked Han in person, and picked it up from lab

  • Dr. Loh and Morgan suggest a drop test on a 3D printed golf face to calibrate force. After calibration, the sensing strategy can be moved to a metal plate with a high level of confidence that it'll work even though it isn't calibrated for a metal plate. Dr. Loh thinks this would be a good deliverable (4/2 via Zoom); golf face CAD created for 3D printing and exploring acrylic laser cutting options to downsize force 

  • Index number is set up. Dr. Loh doesn't have the number, but he said it shouldn't affect our reimbursement and that all purchases go through him anyway (4/2 via Zoom)

  • Sign IP forms and send to Dr. Loh (4/2 via Zoom); emailed and received by Dr. Loh on 4/2

  • Dr. Loh confirmed material list for check out (4/2 via email)

  • Dr. Loh will find out the index number. Fund from TaylorMade are here (4/4 via email)

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

• • Work in parallel (4/1 via Zoom); Kaitlynn and Reuben work on new sensor fabrication/adhesion while Michelle and Chris start DAQ testing with the old sensors until they receive the new sensors

  • Have the progress report uploaded to Webpage by 8pm the night before every meeting (4/1 via Zoom); progress report updated

  • Send email with a few bullets for what we are going to work on the next few days (4/1 via Zoom); email sent to Dr. T on 4/1

  • Add more analysis since we have less testing to do (4/1 via Zoom); we were able to check out the oscilloscope from ARMOR Lab, so we can conduct our testing!

  • Dr. T prefers students to go through Roxanne for purchasing. We can get items delivered to our home addresses instead of UCSD (4/1 via Zoom)

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

• • N/A

Resources or Information Required but not Available

• • N/A

Schedule

• • Adhesion and DAQ testing with newly fabricated PVDF sensors

Budget (list amount spent and amount remaining)

• • Amount spent: $116.59

  • Amount remaining: $2,783.41

Progress on Report and Webpage

• • Title Page, Abstract, Background, and Appendix with Individual Component Reports completed (Kaitlynn)

  • Work on Review of Existing Solutions, Statement of Requirements, and Deliverables (All)

  • Add Multimedia to Webpage (Kaitlynn)