CAROLINE
SCHOENEWALD
FINGER FLEX
RIG
This design was built to measure tension and compression of all fingers. I integrated 6 Interface S-Type Load cells into each finger tower for measurement purposes along with Velcro straps for stability and tension measures.
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We plan to pair this design with the wearable surface EMG array in order to better understand activation of muscles at varying forces.
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This rig is compatible for left and right hands, and also can be stood on it's sides for measurements at a supinated position.
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WHERE
RNEL
WHEN
2019-2020
A LOOK INTO THE DESIGN
Left View
Center View
Right View
Vertical and Horizontal Slide Capabilities
Palm Rest
Vertical Slide Capabilities
2 Velcro Straps for finger attachment
S-Type Load Cell for Tension and Compression Measurements
Right and Left Tracks for Thumbs
Experimental Setup
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6 load cells require specific cable built
2 D-sub 37 cables connect with 2 amplifiers
Amplifier
Amplifiers interface with NI DAQ via screw terminal signal and ground wires
DAQ
DAQ connects to PC
MatLab script shows live feed and force trace over time