MTS SWIFT 50 GLP Sensor Heavy Trucks - Manual (Page 20)

SWIFT 50 GLP Sensors 20
Construction
Hardware Overview
The anti-rotate device is mainly used for road data collection. Although it can
also be used for short periods of time on a road simulator. MTS does not
recommend this use. Due to the extreme fatigue loading characteristics of
durability testing on road simulators, we suggest that you either remove the slip
ring assembly before installing the vehicle on a road simulator, or use it only for
iteration passes, then promptly remove it.
The anti-rotate device should be configured such that no loading occurs to the
slip ring throughout all loading and suspension travel. This means that when you
attach the anti-rotate device to the vehicle, you must consider all possible motion
of the suspension. The anti-rotate device should not bump against the wheel well
at any time; any jarring of the anti-rotate arm will damage the slip ring. For
steering axles, the anti-rotate bracket must be mounted to part of the unsprung
suspension that steers with the tire, such as the brake caliper. For additional anti-
rotate device mounting recommendations, refer to the Anti-Rotate Customer/
User Assembly drawing at the back of this manual.
Transducer Interface
(TI)
The TI conditions the power supply, and uses previously stored calibration values
to convert the eight bridge outputs and the encoder signal to six non-rotating
analog outputs (Fx, Fy, Fz, Mx, My, Mz) plus an angle output. The force and
moment outputs have a value of 10 V full scale, unless a different full-scale
output is requested by a customer. The angle output is a 0–5 V sawtooth output.
Additional
components
Additional components that are supplied with your SWIFT sensor include shunt
and transducer data cables, TI power cable, a SWIFT Transducer Interface
Utilities CD or disk, and the calibration file. MTS can also provide a 12 V DC or
24 V DC power converter for use in the test laboratory.