Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
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