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