1. Instrumented Walker Status Update 2
Jairus
Skyler
Chris Barnett
Rockwell
Larson
Tommy

2. Previously on INSTRUMENTED WALKER
Mounts designed/analyzed/fabricated
Sensors selected/purchased/received
Analog to Digital Converter selected/purchased

3. Since then... Battled the machine shop Calibrated the load cells
Programmed the Arduino
Began early stages of labview and motion monitor integration

4. Machine Shop 3D print check passed -> Actual Fabrication???
Appropriate Screws/Sizes/Lengths
Press fits, Metric -> Imperial

5. Load Cell Calibration Weight applied in 5 lb increments
Voltage read out from calibration board
Plotted & Curve Fitted
Resulting functions

6. Load Cell Calibration (cont.)

8. LabView Going to focus more on labview Create GUI to improve usability
Allow for integration with motion monitor

9. Motion Monitor Integration
-Voltage output will determine forces on walker
-Applied forces will be combined into total applied weight

10. Analog to Digital Conversion Bench Testing
Breadboarded ADC
Determined actual values for Voltage, External Timer, Internal Timings

11. Programming Output

12. Circuit Board
Using data gained experimentally from Breadboard to Finish.
PCB Design
Battery Selection
External Timing Options
Designing as Add On Card
Load Cell Terminals

13. Future Work Finalization/manufacturing of circuit board
Battery and wiring
Board and Battery housing and mounting
Full scale assembly and testing
Crutch design presentation

14. Questions?