Ref: LW-2T-60K-S

6 Axis Wheel Force Transducer - 300 kN - Class 8 Trucks

  • 3 moment and 3 force measurements in real driving conditions
  • Force capacities: Fx, Fz: 300 kN, Fy (lateral): 150 kN
  • Moment capacity: 81 kNm
  • Measures X & Z accelerations
  • Signal output : Analog, CAN, optional EtherCAT, Ethernet/IP and CANFD
  • Monitors combined loads of one or two tires
  • Adapts to 20 inch and larger wheels
  • Environmentally protected
  • Temperature compensated
  • Rugged stainless steel construction
  • Tested to SAE J328 fatigue strength standard
  • Swappable slip ring or telemetry system for signal transmission
  • ISO-17025 calibration certificate included
  • rental option available

Download the product sheet

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Presentation

The LW-2T-60K-S Wheel Force Transducers (WFT) is used to measure forces and moments on class 8 trucks and large off-road vehicles. It provides independent output signals for vertical, lateral, and longitudinal forces as well as camber, steer and torque moments. Being completely weatherproof, it's are ideal for on-road and off-road measurements in all conditions.

Specification

Maximum Force Capacity, [Fx, Fz] (radial) 300 kN
[Fy] (lateral) at Tire Patch 150 kN
Maximum Torque Capacity [Mx, My, Mz] 81 KNm
Accelerometer range 55g
Sensor 4 arm strain gage bridges
Nonlinearity ≤ 1% of full scale output
Hysteresis < 0,5 % of full scale output
Cross Axis Sensitivity after correction < 1% of full scale output
Temperature Range, Operating -40°C to 125°C
Angular Resolution 0.17°
Weight 26 kg

Installation, Signal processing and data transmission

The transducer LW-2T-60K-S outputs :

  • 3 forces
  • 3 moments
  • 2 accelerations X and Z
  • wheel speed and position

Both analog and CAN output are offered. The raw signals are amplified in the amplifier mounted on the transducer, then sent to the conditionning module CT2 through the slip ring assembly.

Transducer + amplifier and slip ring Conditionning module CT2
Capteur + AMP et Slip Ring CT2

CT2 Transducer Interface Box:

  • Performs real-time coordinate transformation and crosstalk compensation
  • Easy to use Zero, Shunt Calibration, and Bridge Power Off functions
  • Simultaneous Analog, CAN, & Ethernet signal outputs
  • Embedded web page enables user to change set-up options, move WFT measurement origin, view transducer static values, create .dbc file

Amplifier and Slip Ring Package:

  • Internal X & Z accelerometers
  • High resolution encoder for position & speed measurement
  • Internal smart chip contains all calibration, zero, & shunt values
  • Provides signal conditioning & amplification to the transducer strain gage signals
  • Digitizes Transducer, Encoder, & Accelerometer signals
  • Supports slip ring

Installation on Vehicle / Spinning application

The matching Amplifier / Slip Ring package easily mounts onto the transducer. It amplifies and digitizes the transducer signals before they pass through the slip ring. The installation on the wheel is completed through a dedicated wheel rim (single or twin) and hub.

Single rim wheel Twin rim wheel double
Simple Double

Installation on Test Rig / non-spinning application

The wheel force transducer supports installation through flanges or hubs on test rig as well, spinning or not spinning.

Setup

The system configuration and setup is completely done within a simple webbrowser on a PC or laptop connected to the CT2 over LAN. no additional Software is needed. Web interface

Applications

  • Driving behaviour assessment (comfort, grip)
  • braking tests
  • pothole testing
  • lane change testing
  • vehicle dynamics
  • durability testing
  • 6axis spinning measurements on test rig
  • tire testing
Application
Heavy-duty - Tractor
Number of Axis
6 Axis
Force Capacity [Fx, Fz]
300000 N
Force Capacity [Fy]
150000 N
Moment capacity
81000 Nm
Nonlinearity (% FS)
± 1 %
Hysteresis
0.5 % FS
Tension d'alimentation
10 Vcc

  • Special Units for high temperature applications
  • Custom designs with alternative output sensitivities / load capacities
  • Weatherproof Slip Ring
  • Encoder / Amplifier (with or without display)

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Phone +33 1 46 91 93 32