MTS SWIFT 20 Ultra Sensor - Manual (Page 24)

SWIFT 20 Sensors 24
Coordinate System
Hardware Overview
The direction of positive forces follows the right hand rule:
• Vertical force (Fz) is positive up
• Lateral force (Fy) is positive out of the vehicle
• Longitudinal force (Fx) is positive fore or aft of the vehicle depending on
which side of the vehicle the SWIFT is mounted
You can change to the MTS Model 329 Road Simulator convention (lateral load
into the vehicle is always positive) or to any coordinate system by changing the
polarities in the calibration file. For instructions on how to change the coordinate
system polarities, see the chapter, “Setting up the Transducer Interface” in this
manual or refer to “Transducer Interface Setup” in the Mini TI manual.
The Mini TI has the capability to offset the coordinate system. For example you
can offset the coordinate system such that the coordinate system is at the center
of the rim instead of the default coordinate system location at the center of the
transducer. The Mini TI manual has additional information.