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Final Design Review

Final Design Review. Stephanie Moran, Ryan Rosario, Zachary Stauber , Bethany Tomerlin , Juan Carlos Ybarra . Outline of Presentation. Goals For Prototype Conductivity In Carbon Filled Elastomers Polymer Selection Processing Methods Improvements In Experimental Design

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Final Design Review

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  1. Final Design Review Stephanie Moran, Ryan Rosario, Zachary Stauber, Bethany Tomerlin, Juan Carlos Ybarra

  2. Outline of Presentation • Goals For Prototype • Conductivity In Carbon Filled Elastomers • Polymer Selection • Processing Methods • Improvements In Experimental Design • How Our Proposed Device Compares to Existing Products • Gantt Chart

  3. Minimum Goals for Strain Sensor Prototype Minimum Requirements: Sensor MC Text output of Strain vs. Resistance

  4. Ideal Goals for Prototype: Glove Design Ideal Prototype: • Output: • Resistance vs. Strain • Position of sensor MC MC

  5. Many polymers can serve as a possible insulating matrix for the strain sensors. 5 • Thermoplastic Polyurethane Elastomers • RTV polyurethanes • RTV silicone rubbers

  6. Electrons tunnel through the insulating matrix to nearby conductive carbon black particles. 6 Polymer matrix Carbon black particle e-

  7. RTV polyurethanes vulcanize when polyols are added to isocyanate-terminated pre-polymers. 7 Addition of polyol

  8. Current Processing Technique

  9. Removal of Bubbles With Pasta Maker Succeeded

  10. A Vacuum failed to Sufficiently Remove Bubbles

  11. New Instron Testing Set-up Eliminates Torsion of Polymer Current Voltage

  12. Conductive Rubber Bands Product on the Market

  13. Comparison of our product to other Commercial Over the Shelf Strain Gauges • KLM Series reads strain up to 20% • Foil/ Resin based gauge • Foil gauges • elongations < 5% • Cheap • “art form” to properly place • electrical output needed

  14. A Preliminary Breakdown of the Cost of the Sense-On Strain Gauge • Carbon Black $1.5325/ lb Current Rubber $5.37/ lb retail Relative Cost • ~50 Strain gauges per pound of raw material

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