Jose L. Agraz, PhD
Finger Force
Finger Force System Structure
System Block Diagram of the Finger Force Sensor Instrumentation Design
Normal Force Profile
Human subject finger force and corresponding forearm EMG signal profiles. Uninjured left wrist finger force profiles
Injured Force Profile
Human subject finger force and corresponding forearm EMG signal profiles. Subject had an injured right wrist showing CTS symptoms, resulting in a 2/3 decrease in finger force and forearm EMG signal amplitude. Uninjured left wrist finger force profiles
Force Keyboard
Finger force instrument hardware Solidworks BAT keyboard finger force sensor cut out
Force Calibrator
Finger force sensor calibrator.
Finger Force Signal Acquisition
LabView finger force data acquisition front panel
Finger Strike
Finger force strike setup
Main LabView Front Panel
LabView Data Logger
Finger Force System
LabView Data Reader
BAT Keyboard
Force Sensor Calibration Curves
Introduction to Finger Force
The proposed project seeks to study the force signals from the human subject’s index finger, during the finger depression and release of the keys on a computer keyboard. Based on these findings, the investigators will analyze, design, and develop an ergonomic eight key keyboard that will measure finger force signals from a subject. It is hoped that this one-year project will result in the development of new techniques to anticipate Carpal Tunnel syndrome injuries before they occur. more detail
Introduction
Anatomy
Methods
Results
