Transcript Team ILC Members: Lauren McIlwain, Michael Nolan Nathan

Position Sensing Glove
Sponsors: David Cadogan
Scott Davidson
Advisor: Dr. Michael Keefe
Background:
Final Concept:
LabView DAQ Program:
During a hand therapy session,
physical therapists must
manually measure the angle of
each joint in a patient’s hand
and wrist.
Team 6:
Barbara Tuday
Nathan Schreppler
Michael Nolan
Lauren McIlwain
Proof of Concept Prototype:
Glove with Model
Sensors and Securing
Devices:
Circuit Diagram and
Test Setup:
Problem Statement:
Our goal is to design, develop,
produce, and test a prototypic, lowcost, and functional glove that will
sense key finger, thumb, and wrist
positions using compliant advanced
technologies.
Testing:
Concept Selection:
Glove with Sensors:
Top Ten Wants:
Key Customers:
•Tension Test
•Bend Radius Test
•Pressure Test
•Twist Test
Low Cost
Accuracy
Ease of Use
Sizing
Repeatability
Reliability
Other
• ILC Dover
• Physical Therapists
• Patients
Key Metrics
Target Values
Accuracy
Cost
Cycles to Failure
Resistance
+/- 2.5 degrees
$200.00
50,000
35,000 ohms
Subsystems:
Results:
•Optimal backing is the medium-thickness backing (three
layers of packing tape).
• No effect from pressure.
• Minimal effects from tension and twist.
Features:
• Spectra Symbol flex sensors glued to a nylon knit
comfort glove.
Selected Concepts:
• Sensors – Peratech “QTC”
material
• Wiring – Calmont brand wire
• Glove – Knit “Comfort glove”
• DAQ – LabView
Used in Prototype:
• Sensors – Spectra Symbol
flex sensors
• Wiring – Copper wire
• Attachment of
sensors
• Effect of backing
thickness
• Need for electrical
connection stiffener
• Behavior of
sensors:
• Sensors wired with 24 gauge wire to an eightchannel DAQ board.
• Data collected using LabView, which will convert
voltage readings to angular measurements.
• Stiffeners made of polypropylene stabilize and
protect the electrical connections on the sensors.
• Bend radius has no effect on voltage readings.
•An electrical connection stiffener is necessary for consistent
results.
Project Transition:
• Replace Sensors with Peratech QTC
Technology
• Rewire with Calmont brand wire
• Improve DAQ system (USB Port Input)
• Improve LabView Program