ABSTRACT
Platforms measure force using transducers. When a force is applied to the plate each transducer experiences a deformation that is proportional to the magnitude of the force. A voltage, measured from the transducer, also alters in proportion to the amount which the transducer has deformed. Thus, the change in voltage measured by the transducer is proportional to the magnitude of force
use strain gauge or piezoelectric transducers. Piezoelectric platforms are more sensitive to rapid changes in force, but suffer from a change in output voltage with no change in applied force (i.e., drift). As such, they are more suited to measure forces from relatively short-lived, dynamic activities such as walking, running and jumping. Strain gauge plates are less susceptible to drift and are not as sensitive as piezoelectric models, so are preferred for recording forces from longer, less dynamic activities such as archery or shooting.
