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FP Type 2
A type 1 Force Platform is an explicit representation of the Force Vector that specifies directly the Force, Center or Pressure, and Free Moment in the Force Platform Coordinate System.
Calculating the Force Signals in the Force Platform Coordinate System
[Original Analog]= Fx, Fy, Fz, COPx, COPy, Tz as specified by the ANALOG channel numbers
Pre-processing
These steps are common to all force platforms and are described here Compute Baselines
Average the Analog signals for the specified ZERO frames
Subtract Baselines
Force Vector
Force[X]= Fx Force[Y]= Fy Force[Z]= Fz
Center of Pressure
LengthConversion = Point units conversion to meters; e.g. for POINT units=mm LengthConversion=0.001
COP[X]= Mx*LengthConversion
COP[Y]= My*LengthConversion
COP[Z]= ORIGIN[Z]*LengthConversion
Free Moment
FreeMoment[X]= 0
FreeMoment[Y]= 0
FreeMoment[Z]= Tz
Transforming the Signals into the Laboratory Coordinate System
The transformation is defined by the location of the force platform corners, and is common to all force platforms.