Electronic Instrumentation in Lofstrand: Dynamic Force and Attitude Monitoring

Abstract

This work provides quantitative data related to the
use of Lofstrand crutches, these data are the strength applied
on the armrest to the contact surface, the angle of the crutch
relative to its axis of origin. Modular sensors of magnetometer,
gyroscope and accelerometer were used. The results presented
are: the dynamic force variation in the order of 0 kgf to 50
kgf was measured by the FSR sensor indicating the convergence
of the data with the theoretical reference. Another innovative
contribution of this work is the geoprocessing during the walk of
the user. Finally, the purpose of the system is to explore the use
of the Canadian crutch for the walking response and consequent
the storage of the users data, providing a mapping for user walk