200 likes | 313 Views
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.
E N D
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 Weighing Carbon Black Increased Mixing Time Using Katjen Carbon Black Increased Surface area: 1400 m2/g Typical Carbon Black is 100-500 m2/g
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
Four-point resistance measurements eliminate errors due to changing contact resistance.
An automatic data acquisition setup allows for a faster sample rate. Strain vs. Time Voltage Output Multimeter Multimeter Resistance Output
Sensor Arrangement and Data Processing Final Design: • Output: • Resistance vs. Strain • Position of sensor Bread Board Arduino Multiplexer Amp MC
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
Conduction in the composite cannot be explained by tunneling, but can be modeled by Mean Field Theory. e- e- 30nm
Porosity Characterization of Carbon Filled Elastomers 10X 200X MC Voids Seen Under Confocal Microscope