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Prototype Presentation - PowerPoint PPT Presentation


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Prototype Presentation. Stephanie Moran, Ryan Rosario, Zachary Stauber , Bethany Tomerlin , Juan Carlos Ybarra . We modified our goals to more suitably match our application. Inexpensive High Elongation (>10%) Fast Response Time Precision. Current Improved Processing Setup.

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slide1

Prototype Presentation

Stephanie Moran, Ryan Rosario, Zachary Stauber, Bethany Tomerlin, Juan Carlos Ybarra

slide2

We modified our goals to more suitably match our application

Inexpensive

High Elongation (>10%)

Fast Response Time

Precision

slide3

Current Improved Processing Setup

Weighing Carbon Black

Increased Mixing Time

Using Katjen Carbon Black

Increased Surface area: 1400 m2/g

Typical Carbon Black is 100-500 m2/g

slide4

Future Improvements to Processing

Moving to a Silcone Rubber

- 20:1 Mixing Ratio

-Increase mixing Time

Purchasing A Dispersion Blade

Placing Samples Under Hot Press to Cure

slide6

An automatic data acquisition setup allows for a faster sample rate.

Strain vs. Time Voltage Output

Multimeter

Multimeter

Resistance Output

slide8

Sensor Arrangement and Data Processing

Final Design:

  • Output:
  • Resistance vs. Strain
  • Position of sensor

Bread Board

Arduino

Multiplexer

Amp

MC

slide9

Requirements for Final Design

  • Glove Requirements:
    • Flexible
    • Relatively rigid substrate for strain measurement
  • Sensor Requirements:
    • Thinner
    • More elastic at higher strain rates
  • Possible Solutions:
    • Integrating sensor into fabric of glove
    • Create a glove with selective rigid sections
    • Molds with depth much smaller than those being used
    • Cut samples with proper shape.

MC

slide11

Conduction in the composite cannot be explained by tunneling, but can be modeled by Mean Field Theory.

e-

e-

30nm

slide19

Porosity Characterization of Carbon Filled Elastomers

10X

200X

MC

Voids Seen Under Confocal Microscope