This sensor outputs cut-force between the two connecting frames,
whereby the output signal force = {frame_a.fx,
frame_a.fy}. If parameter
positiveSign = false, the
negative cut-force is provided. The cut-force is resolved in frame
specified by the parameter resolveInFrame
The connector frame_resolve is always present and
must, therefore, be always connected from outside.
Developed 2010 at the DLR Institute of System
Dynamics and Control