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WFT-C - 6-Component Wheel Force Transducers, Wheel Force Transducers

In motor vehicle development, used to determine and record forces and torques at the wheels during test drives. Measurement results generate the data used for computer simulations or as input parameters for test rig systems.
Wheel Force Transducer-Dynamics
Wheel Force Transducer-Dynamics
WFT-C - 6-Component Wheel Force Transducers
Rear of Wheel Force Transducer
Dx-Receiver
Features:
  • Waterproof (IP66, IP67)
  • Ideal for brake testing due to excellent heat dissipation
  • Removable stator for convenient balancing of wheels
  • Online zeroing - system is ready to measure after three turns of the wheel
  • Measurement range: Fx, Fz = ±45 kN, Fy = ±25 kN, Mx, My, Mz = 8.75 kNm
  • Angular resolution 0.072°
  • Working temperature range (sensor): -40°C to +150°C
  • Convenient parameterization with software RemusLAB
Manufacturer:  CAEMAX imc group
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Datasheet
Description
Specifications
Models & Accessories
Downloads
Similar Products
WFT-C - 6-Component Wheel Force Transducers - Description

In motor vehicle development, 6 component wheel force transducers (WFTs) are used to determine and record forces and torques at the wheels during test drives – in all three dimensions, resulting in 3 forces (Fx, Fy, Fz) and 3 torques (Mx, My, Mz). The measurement results generate the data used for computer simulations or as input parameters for test rig systems.

With the WFT-Cˣ, CAEMAX presents a new generation of wheel force transducers which are not only completely waterproof, but furthermore provide a higher thermal and mechanic load to perform even in off road tests of cars, SUVs and light trucks in any weather conditions.

A completely revised design with integrated miniature amplifiers leads to an unprecedented plus of measurement precision: An optimized arrangement of strain gauges, along with on-site signal processing by integrated miniature amplifiers (one for each strain gauge), results in extremely short cable runs.

For maximal noise suppression, all amplifier inputs are fully differential (incl. bridge excitation). Up to 16 in-built thermal sensors can be used for optimal temperature compensation of strain gauges. Along with the high incremental angular resolution of 0.072°, this guarantees the best accuracy possible.

The new WFT-Cˣ can be used on small to large cars (minimum wheel size: 14 inches), but also on SUVs and light trucks (maximum hub diameter: 5.5 inches).

An optimized sensor design, along with the high thermal conductivity of the sensor material, avoids excessive heating of the measurement body even on heavy break tests. The entire signal processing is designed for a temperature range of -40°C to +105°C. All this results in a much wider range of applications than before, which now also includes braking tests, ride comfort tests and tire tests with the very same WFT configuration. Along with its waterproof design, its remarkable shock resistance of up to 50 g now enables WFT measurements with speed bumps!

Due to mechanically induced nonlinearities, accurate calibration for each wheel on a specially designed test rig is essential. The inhouse calibration test rig at CAEMAX has been enhanced to be able to offer optimal calibration. There, each wheel force transducer‘s profile containing all calibration and correction values necessary for exact online/real time calculation can be exactly determined.

Besides convenient channel parametrization, CAEMAX‘s data acquisition software RemusLAB offers online display of measurement data in physical units. Measurement data from the WFT can be stored in one file with further measurement data from other sources —synchronously!

For over 20 years, the MOPS measurement amplifier has been proving its reliability based on its optimal signal processing and modular expandability due to 'plug and play'. It offers possibilities other measurement systems can only dream of: Programmable, continuous amplification from 1 ... 10000, continuously programmable active lowpass filters with Bessel or Butterworth characteristics from ca. 3 Hz - 20 kHz, autozero over twice the measurement range, a new CAN module and much more. Moreover, CAEMAX's new wheel force transducers WFT-Cx are fully supported.

 

 

 

 

 

 

 

 

 

 

WFT-C - 6-Component Wheel Force Transducers - Specifications
Input TypesStrain Gauge
No. of Inputs2-20
OutputAnalog
Ethernet
CANbus
WFT-C - 6-Component Wheel Force Transducers - Models & Accessories
Models
WT/CMX-WFT-CxWheel Force Transducer
WT/CMX-WFT-Cx-TELWheel Telemetry Unit for WFT-Cx
MOPS/WFT-TTI-BAS-base6-Component WFT Telemetry Control Unit (TTI)
MOPS/WFT-TTI-BAS-2chSecond 2-channel WFT telemetry controller extension for 6-component WFT TTI
MOPS/WFT-TTI-BAS-16ch16 channel analog output module ±5 V or ±10 V extension for 6-component WFT TTI
MOPS/WFT-TTI-BAS-CANCAN signal output extension for 6-component WFT TTI
WFT-C - 6-Component Wheel Force Transducers - Downloads
WFT-C - 6-Component Wheel Force Transducers - Similar Products
  • Measurement of driving and breaking torques
  • sealed IP67 (waterproof)
  • Transmitter electronics integrated in sensor
  • My = 3.000 Nm (4.500 Nm optional)
  • Power supply: rechargeable battery (approx. 50 h operating time)
  • Working temperature (Sensor): -10°C … +60°C
  • Programmable amplifiers with autozero function
  • Convenient parameterization by RemusLAB or webbrowser
Input Types
Strain Gauge,
Temperature
No. of Inputs
2-20
Output
Analog,
Ethernet,
CANbus
  • Steering torque range ±100 Nm or ±200 Nm
  • Steering angle range ±1474,56°
  • Rotational velocity range ±1000°/sec
  • Acceleration in x, y, z (optional)
  • Rotational acceleration (optional)
  • CAN and analog output
  • Online monitoring of all channels in physical values
  • Inductive power supply by control unit
Input Types
Strain Gauge,
Vdc
No. of Inputs
2-20
Output
Analog,
CANbus
  • Up to six analog inputs per transmitter unit: strain gauges, temperatures, analog signals, freely programmable
  • Sampling rate up to 4,8 kHz (16 bit) per channel
  • Synchronous data collection and processing of up to 4 transmitters (SCTs)
  • Integrated standard interfaces: Analog, CAN, Ethernet
  • Extended Temperature available -40 °C to +125 °C (Dx-HT)
  • Measurement value output in physical units available
  • No authorization required for radio transmission (2.4 GHz band)
  • Convenient parametrization by RemusLAB software or web browser
Input Types
Strain Gauge,
Vdc,
Temperature,
Frequency
No. of Inputs
2-20
Output
Analog,
CANbus
  • 16 bit resolution A/D
  • Simultaneous Sampling of all Channels
  • Bandwidth up to 24kHz for the 4 Channel System
  • Radio Telemetry Transmission
  • Uses 1 Data Transmission Module, with up to 16 Input Modules
  • Water Resistant - IP65 modules
  • Powered from 7-30 Vdc
Input Types
Strain Gauge,
Vdc,
Temperature,
IEPE-ICP
No. of Inputs
2-20
Output
Analog,
Ethernet
  • Static & Dynamic measurements up to 24,000 Hz
  • 2 to 64 channel systems
  • Inputs for Strain Gauges, Temperature, ICP sensors or Voltages
  • 4 Vdc Excitation & Gains selectable, 125, 250, 500, 1000 or 2000
  • 16 bit ADC, simultaneous sampling
  • Full software programmable & Auto Zero calibration
  • Inductive or battery powered
  • Rugged, water proof housing
Input Types
Strain Gauge,
Vdc,
Temperature
No. of Inputs
8 +,
2-20
Output
Analog
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