MTS SWIFT 10 MC Sensor - Manual (Page 18)

SWIFT 10 MC Sensors 18
Construction
Hardware Overview
Construction
The SWIFT sensor has one-piece construction for outstanding fatigue life, low
hysteresis, and high stiffness. Its compact package has a minimal effect on inertia
calculations, and a minimal dynamic effect on the test vehicle.
The transducer can be used for developing conventional durability tests on the
MTS Model 329 Road Simulator. Normally, the transducer is replaced with an
equivalent wheel adapter after the simulation drive signals are developed and
prior to the start of the test.
The SWIFT sensor includes several mechanical and electrical components.
Transducer
The transducer attaches to spoke/hub adapters to which the spokes and a
modified wheel rim are attached. On the test track vehicle, the transducer spins
with the wheel. On a road simulator, the transducer attaches directly to an adapter
plate on the 329 spindle housing. The slip ring can be used to accommodate the
range of motion of the rear swing arm.The transducer is available in two
materials.
The transducer’s unibody design means there are no multiple parts welded or
screwed together.
The transducer has four beams with strain gages that measure three orthogonal
outputs:
Fx—longitudinal force
Fz—vertical force
My—acceleration and brake torque
It has onboard conditioning and amplifiers to improve the signal-to-noise ratio.
Inner Hub
Adapter - Brake
Outer
Spoke/Hub
Adapter
Transducer Assembly
Axle Spacer
Axle Spacer
Oil Seal
Sealed Ball
Bearing
Load Spacer
Slip Ring
Encoder
Axle
Sleeve
Inner Hub
Adapter - Sprocket
Load Spacer
Sealed Oil
Bearing
Oil Seal
S10MC-08