FREQUENCY RESPONSE AUDIO VISUALIZER

Team Couch Street Jake NylundKevin RatuisteRobert RodriguezAlex Arlint

Academic Advisor:Joseph Hoffbeck

Industry Representative:John Turner – Impinj, Inc.

Client: William Taylor - Student

October Program Review: 25 Oct 2013

Introduction• Project Overview• Scorecard• Ferrofluid and Electromagnet Tests• Test Results• Decisions Made• Upcoming Milestones• Concerns

Overview• Sound visualizer using

ferromagnetic fluid• Liquid that becomes

magnetized in the presence of a magnetic field

• Breaks the frequencies of an audio file into low-range, mid-range, and high-range and manipulates ferrofluid

Scorecard• First Draft of Functional Specifications Document: 9/20/2013 (ACCOMPLISHED)• Adviser Approved Draft of Functional Specifications Document: 9/27/2013 (ACCOMPLISHED)• Final Draft of Functional Specifications Document: 10/4/2013 (ACCOMPLISHED)• Complete Testing of Ferromagnetic Fluid & Electromagnets: 10/13/2013 (STARTED)

• Details to come• Determine Filters for Signal Processing: 10/20/2013 (ACCOMPLISHED)

• Implement filters digitally with microcontrollers• Determine which Microcontroller to use and test: 10/20/2013 (ACCOMPLISHED)

• Arduino Duemilanove 

Ferrofluid and Electromagnet TestsGoals:

- Make ferrofluid- Build electromagnet- Determine current and voltage needed

Test Results• Ferrofluid

• Made of toner powder, vegetable oil and water• Behaved unexpectedly and inconsistently

• Electromagnet• Built with 16 gauge and 22 gauge wire

• 16 gauge gave best results• Inadequate performance

Decisions Made• Ferrofluid: Request extra funds to purchase ferrofluid

• Electromagnet: Use 16 gauge wire w/ thinner insulation

Upcoming Milestones• First Draft of Design Document: 11/1/2013• Adviser Approved Draft of Design Document: 11/8/2013• Final Draft of Design Document and Final Budget:

11/15/2013

Concerns• The electromagnet• Decisions based off of test results

• Power supply• Current

• Programming the Arduino

Conclusion• Project Overview• Scorecard• Ferrofluid and Electromagnet Tests• Test Results• Decisions Made• Upcoming Milestones• Concerns

QUESTIONS?