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.
We plan to pair this design with the wearable surface EMG array in order to better understand activation of muscles at varying forces.
This rig is compatible for left and right hands, and also can be stood on it's sides for measurements at a supinated position.
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