1. Assessment of Soft Artificial Skin with Pressure Sensibility
Southeastern Louisiana University

2. James Courtney Energy Engineering Technology Ashley Galvan Computer Engineering Technology Hunter LaFleur Energy Engineering Technology
ET 494: Senior Design II
Instructor: Dr. Cris Koutsougeras
Advisor: Dr. Mohammad Saadeh
FALL 2015

3. Overview Previous Semester Current Semester Research of skin material
Research FSR
Order material
Preliminary testing
Cured multiple skin sample
Evaluate the skin material with pressure sensibility using FSR sensors
Design an Array of FSRs
Embed final platform design of FSRs with skin.
Record data
LED display
Overview

4. This growing study can be applied to robotic arms, which can gather information and respond to given external inputs.
The purpose of this project is to receive tactile sensory feedback from the artificial skin-like surface. The feedback will improve control.
Purpose

5. Materials Silicone rubber (Dragon Skin 10 MED & SOFT). FSR A201
Vacuum Chamber Kit w/Pump
Homogenizer
Resistors-100K, 500K, 1M Ohm
Arduino Uno, Mega
LED’s
Acetone
Potentiometer-10K Ohm
Materials

6. The equation above is the output from a FSR device.
FSR Theory

7. FSR Sensor A201 Model A201 FSR will be used.
It is a piezo resistive force sensor.
The harder the pressure, the lower the resistance.
The dynamic range of this sensor can be modified by changing the drive voltage and adjusting the resistance of the feedback resistor.
FSR Sensor A201

8. Voltage Divider

9. The design of the project will be a skin platform that consists of an embedded grid of FSRs that are spatially arranged.
The platinum silicone will then be poured on top of the grid.
Design

10. Spring Constant Testing on the Synthetic Material
Omega O DAQ
LC N Sensor Load Cell
PT3/M -25 mm XYZ Translation Stage
Omega DMD4059 Bridge/Strain Gage Signal Conditioner
Spring Constant Testing on the Synthetic Material

11. Past Deliverables Task: Dates: Progress: Research Silicone Solution
1/29/2015
Completed
Research De-Gassing Chamber and Pump
2/05/2015
Order Silicone Solution
3/05/2015
Order Chamber and Pump
Order Homogenizer
Research FSR sensor
2/10/2015
Find team members
3/9/2015
Set-up work area
3/12/2015
Set-up De-Gassing Chamber
3/18/2015
Set-up Homogenizer
Test Pump
3/20/2015
Cure Skin Proto-types batch 1
Test Skin Proto-types batch 1
4/3/2015
Cure Skin Proto-types batch 2
4/15/2015
Test Skin Proto-types batch 2
4/21/2015
Order Dragon Skin – Soft
Research FSR Implementation
4/28/2015
Past Deliverables

12. Deliverables Task: Dates: Progress: Cure Skin Samples 07/20-8/24/2015
Completed
Implement FSR and Silicone Solution
8/25/2015
Cure Proto-type Implementation
8/27-9/4/2015
Test Proto-type Implementation
9/9/2015
Measure and Record Data
9/10/2015
Implement FSR Grid w/Skin
10/15/2015
Cure Skin Platform w/ Grid
10/16/2015
Test Skin Platform w/Grid
10/24/2015 
10/26/2015~
Application w/ Platform
11/15/2015
LED Display
12/1/2015
Deliverables

13. Integrated skin with Sensors
3 x 4 matrix with 12 integrated FSR sensors
Implemented in the artificial skin
Integrated skin with Sensors

14. LED display

15. Q & A?

16. Works Cited