A Type 1 force platform is an explicit representation of the force vector that directly specifies the Force, Centre of Pressure, and Free Moment signals in the force platform's coordinate system.

A Type 1 force platform records 6 ANALOG channels containing the following information:

[Original Analog]= [Fx, Fy, Fz, Mx, My, Tz]

Calculating the desired force signals in the force platform's coordinate system consists of the following steps:

1. Compute baselines by averaging the analog signals for the specified FP_ZERO frames
2. Subtract each channel's baseline from its recorded signal
3. Calculate the the Ground Reaction Force
4. Apply a threshold
5. Transform the signals into the Laboratory Coordinate System

The Force vector for a Type 1 force platform is calculated as follows:

Force[X]= Fx
Force[Y]= Fy
Force[Z]= Fz

The COFP signal for a Type 1 force platform is calculated as follows:

COP[X]= Mx*LengthConversion
COP[Y]= My*LengthConversion
COP[Z]= ORIGIN[Z]*LengthConversion

Where

LengthConversion = Point units conversion to meters

for example, if the POINT units are millimetres then the LengthConversion term is 0.001.

The Free Moment signal for a Type 1 force platform is calculated as follows:

FreeMoment[X]= 0
FreeMoment[Y]= 0
FreeMoment[Z]= Tz

The transformation is defined by the location of the force platform corners, and is common to all force platforms.