Prototype Presentation
description
Transcript of Prototype Presentation
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1Prototype Presentation
Stephanie Moran, Ryan Rosario, Zachary Stauber, Bethany Tomerlin, Juan Carlos Ybarra
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2We modified our goals to more suitably match our application
1. Inexpensive
2. High Elongation (>10%)
3. Fast Response Time
4. Precision
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• We need:• Movement through Space• Rotation • Real Time Feedback
Can act as a supplement• Reduce Errors
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Improvements to be Made to Our System in Order to compete with existing Motion Capture Technologies
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5Our Product Could Be Used to Monitor and Provide Feedback for Joint Extension
• Inexpensive
• Output of strain
• Track degenerative diseases
• Posture Feed Back Loops
• Need to reduce distractibility
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6Current Processing Technique
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7Current Processing Technique
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8Current Processing Technique
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9Current Processing Technique
Calender
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10Bubbles Create Stress Concentrators In Rubber
Ippolito, M. Physical Review, 75, 224110 (2007).
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11Bubble Removal with Vacuum
Before Vacuuming
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12Bubble Removal with Vacuum
Before Vacuuming During Vacuuming
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13Bubble Removal with Vacuum
Before Vacuuming During Vacuuming After Vacuuming
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14Improvements in Processing to Help Consistency
Weighing Carbon Black Alternating Mixing Time
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Optimized Measurement Set-Up
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Characterized Samples, Normalized and Real Data
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Resistance vs Extension
sample 1sample 2sample 3
Extension (in./in.)M
- Ohm
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Resistivity vs. Extension
sample 1sample 2sample 3
Extension
M-O
hm-in
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Hysteresis of Samples
0 0.2 0.4 0.6 0.8 1 1.20
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Hysteresis
cycle 1 upcycle 1 downcycle 2 upcycle 2 downcycle 3 upcycle 3 down
Extension (in.)
M-O
hm
0 0.2 0.4 0.6 0.8 1 1.2 1.40
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Hysteresis
cycle 1 upcycle 1 downcycle 2 upcycle 2 downcycle 3 upcycle 3 down
Extension (in.)
M-O
hm
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Sample used in Prototype
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f(x) = 453.915509134616 x³ − 198.775426573427 x² + 95.2364976689977 x + 5.59790209790215R² = 0.998050312909082
Resistance vs Extension
sample 2Polynomial (sample 2)
Extension (in./in.)
M- O
hm
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19Minimum Goals for Strain Sensor Prototype
Minimum Requirements:MC
Text Output: Strain vs. Resistance
Sensor
R = 453.9 ε 3 - 198.7 ε 2 + 95.23 ε + 5.597
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20Glove for Final Design
Final Design:
MC
Arduino
Output:•Resistance vs. Strain•Position of sensor
Multiplexer Amp
Bread Board
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21We plan on altering our current process to yield more reproducible samples
1. Better dispersed phase
2. Optimize void removal
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Gantt Chart 22
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23Conduction in the composite cannot be explained by tunneling, but can be modeled by Mean Field Theory.
e-e-
30nm
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24Complete Circuit Design
MC
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Normalization of Data
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26Comparisons of Processing Techniques
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27Comparisons of Processing Techniques
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28Failure vs. Hole Radius Size