MICHIGAN SCIENTIFICcorporation

8500 Ance RoadCharleston, MI 49720Tel: 231-547-5511Fax: 231-547-7070

321 East Huron St.Milford, MI 48381Tel: 248-685-3939Fax: 248-685-5406http://www.michsci.com

Wheel Force Transducers

• Measures 3 forces & 3 moments• Measures X & Z accelerations• Monitor and control laboratory tests• Ideal for on-road and off-road measurements

• 14+ years in WFT development and manufacturing

• Continuing development of WFT and electronics to simplify data collection for customers

• Superior Reliability• Quick set-up and calibration• Easy to operate

WFT System

OverviewMichigan Scientific Wheel Force Transducers (WFT) measure all loads imparted on the vehicle by the road. The WFT outputs three force, three moment, two acceleration, wheel speed, and wheel position signals to provide complete spindle load data. Each WFT utilizes a single piece strain gage based transducer with six inde-pendent measurements. Every WFT system is completely weatherproof and the combination of a high strength transducer and weatherproofing results in a very reliable system. They are intended for both on-road and off-road measurements in all conditions. All models can also be used to monitor and control laboratory tests.

Components

[2]

[3A]

[3B]

Wheel ForceTransducer

CT2 Transducer Interface Box

Integrated Slip Ring &

Amplifier Package

Custom Hub andWheel Adapters

Measures: Longitudinal (Fx), lateral (Fy), and vertical (Fz) forces, as well as camber (Mx), torque (My), and steer (Mz) moments.

Continuous internal X & Z accelerometers and amplifiers. Digitizes all WFT signals before passing through the slip ring. This digitization reduces noise and allows for a small flexible signal cable for easy cable routing.

A modified production wheel, matched with a custom hub adapter, preserves the production mounting bolt pattern and wheel offset.

[1]

Performs real-time coordinate transformation and cross-talk compensation. Simultaneously provides analog, CAN, & Ethernet signal out-puts, and has an embedded web-page for easy WFT system set-up. The CT2 has easy to use and quick Zero and Shunt features.

[4]

Wireless Transmitter Package

An inductively powered transmitter that digitizes and transmits signals via RF to a remote receiv-er. This option provides a more compact transducer package.

OR OR

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Michigan Scientific’s LW12.8 Series are the most versatile WFTs for passenger cars and light duty trucks. Available with either slip ring and telemetry, data transmission versions.

WFT Sizing & Selection Charts

Model LW-MC-3.5K LW9.5 LW12.8T LW12.8 LW12.8TEL LW15.0 LW-2T-20K

Rim size ≥ 11” ≥ 10” ≥ 13” ≥ 13” ≥ 14” ≥ 15” ≥ 16”

Load capacity

Fx, Fz 3,500 lb (15.6 kN)

8,000 lb (35.6 kN)

9,000 lb (40.0 kN)

12,000 lb (53.4 kN)

14,000 lb (62.2 kN)

25,000 lb (111 kN)

Fy 1,200 lb (5.3 kN)

4,000 lb (17.8 kN)

4,500 lb (20.0 kN)

6,000 lb (26.7 kN)

7,000 lb (31.1 kN)

12,500 lb (56 kN)

Mx, Mz 1,200 lb-ft (1.6 kN-m)

4,000 lb-ft (5.4 kN-m)

3,700 lb-ft (5.0 kN-m)

6,000 lb ft (8.1 kN-m)

7,000 lb-ft (9.5 kN-m)

20,000 lb-ft (27 kN-m)

My 2,500 lb-ft (3.4 kN-m)

4,000 lb-ft (5.4 kN-m)

3,700 lb-ft (5.0 kN-m)

6,000 lb ft (8.1 kN-m)

7,000 lb-ft (9.5 kN-m)

20,000 lb-ft (27 kN-m)

Version Telemetry Slip Ring Telemetry Slip Ring

Application MotorcycleATV & small

vehiclePassenger car & light duty truck

Medium Duty Truck

& SUV

Model LW-1T-25K** LW-2T-50K LW-2T-60K-S LW-2T-100K-S LW-2T-100KRim size ≥ 22.5” ≥ 19..5” ≥ 22.5”

Hub Size (PCD) ≤ 285 mm ≤ 335 mm ≤ 335 mm*

Load capacity

Fx, Fz 25,000 lb (111 kN)

50,000 lb (222 kN)

67,400 lb (300 kN)

100,000 lb (445 kN)

Fy 12,500 lb (56 kN)

25,000 lb (111 kN)

33,700 lb (150 kN)

50,000 lb (225 kN)

Mx, Mz 20,000 lb ft (27 kN-m)

50,000 lb-ft (68 kN-m)

60,000 lb-ft (81 kN-m)

100,000 lb-ft (135 kN-m)

My 20,000 lb ft (27 kN-m)

50,000 lb-ft (68 kN-m)

60,000 lb-ft (81 kN-m)

100,000 lb-ft (135 kN-m)

Version Slip Ring

Application Class 8 Trucks, Agricultural and Construction Equipment

*Larger Hub PCDs can be accommodated by using two piece Hub Adapters

**The LW-1T-25K will measure loads from one wheel of a dual wheel set

Light & Medium Duty

Heavy Duty

Michigan Scientific’s LW-2T-60K-S and LW-2T-100K-S are the most versatile Heavy Duty WFTs available on the market.

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WFT Application ExamplePothole @ 25 MPH

8500 Ance RoadCharleston, MI 49720Tel: 231-547-5511Fax: 231-547-7070

321 East Huron St.Milford, MI 48381Tel: 248-685-3939Fax: 248-685-5406

MICHIGAN SCIENTIFICcorporationhttp://www.michsci.com

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