Michigan Scientific · wheel force transducer

LW series wheel force transducers 15.5 to 700 kN

Three forces and three moments at the wheel center, in real driving conditions.

Model

For: passenger car and SUV. LW12.8-50: Datasheet PDF

50 kN: Fx, Fz capacity
25 kN: Fy capacity
6.5 kN·m: Moment capacity
≤ 0.2 % FS (Fx, Fz): Non-linearity

OutputsFx Fy Fz · Mx My Mz
Also measuredX and Z acceleration · wheel speed and angle
Signal outputanalog · CAN
Signal transmissionslip ring or telemetry

LW12.8-50 datasheet (2022) (PDF)LW12.8 50 Rim Adapter Design Guide (PDF) All resources

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01 · The essential

All the wheel loads, one transducer

An LW transducer replaces the wheel center and gives independent signals for vertical, lateral and longitudinal force and for camber, steer and torque moments. It also outputs X and Z acceleration, wheel speed and wheel angle.

Stainless steel and weatherproof sealing make it fit for the road; temperature compensation keeps the output stable over a wide range. The same transducer mounts on a test rig through flanges or hubs, spinning or not.

The signals are amplified on the transducer, leave the wheel through a slip ring or telemetry, and reach the CT2 interface box, which does the coordinate transformation and crosstalk compensation in real time. Setup is done in a web browser.

Wheel force transducer with amplifier and slip ring assembly — Transducer, amplifier and slip ring. The slip ring and the telemetry package are swappable.

02 · Specifications

The numbers

LW-MC-3.5K
Vehicle	Motorcycle
Fx, Fz capacity	15.5 kN
Fy capacity	5.3 kN
Moment capacity	1.6 / 3.4 kN·m
Non-linearity	< 1 % FS
Hysteresis	≤ 0.5 % FS
Cross Axis Sensitivity after correction	< 1 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.25°
Weight	2.25 kg, with telemetry electronics
Supply voltage	10 to 36 V DC
Axes	6 Axis

LW25
Fx, Fz capacity	25 kN
Fy capacity	8.9 kN
Maximum recommended static weight	550 kg
Maximum Torque Capacity [Mx, Mz]	2.0 kN·m
Maximum Torque Capacity [My]	3.4 kN·m
Accelerometer range	100 g
Sensor	4 arm strain gage bridges
Non-linearity	≤ 0.25 % FS (Fx, Fy, Fz, My) · ≤ 0.5 % FS (Mx, Mz)
Hysteresis	≤ 0.25 % FS
Cross Axis Sensitivity after correction	≤ 0.4 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17° (slip ring) · 0.25° (telemetry)
Vehicle	Motorcycle, ATV, small car
Analog output	0-10 V DC
Supply voltage	10 V DC
Weight	1.5 kg
Axes	6 Axis

LW9.5
Vehicle	ATV, utility and small vehicles
Fx, Fz capacity	35.6 kN
Fy capacity	17.8 kN
Moment capacity	5.4 kN·m
Accelerometer range	55 g
Non-linearity	≤ 0.25 % FS
Hysteresis	< 0.5 % FS
Cross Axis Sensitivity after correction	< 1 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Wheel size	10 in and larger
Analog output	0-10 V DC
Supply voltage	10 V DC
Axes	6 Axis

LW12.8-50
Fx, Fz capacity	50 kN
Fy capacity	25 kN
Maximum Torque Capacity [Mx, My, Mz]	6.5 kN·m
Accelerometer range	55 g
Sensor	4 arm strain gage bridges
Non-linearity	≤ 0.2 % FS (Fx, Fz, My) · ≤ 0.5 % FS (Fy) · ≤ 1.0 % FS (Mx, Mz)
Hysteresis	< 1.0 % FS
Cross Axis Sensitivity after correction	< 0.5 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Wheel size	12 in and larger
Weight	4.7 kg
Vehicle	Automotive - LD veh.
Moment capacity	6.5 kN·m
Supply voltage	10 V DC
Axes	6 Axis

LW12.8-50-TEL
Fx, Fz capacity	50 kN
Fy capacity	25 kN
Maximum Torque Capacity [Mx, My, Mz]	6.5 kN·m
Accelerometer range	55 g
Sensor	4 arm strain gage bridges
Non-linearity	≤ 0.2 % FS (Fx, Fz, My) · ≤ 0.5 % FS (Fy) · ≤ 1.0 % FS (Mx, Mz)
Hysteresis	< 1.0 % FS
Cross Axis Sensitivity before compensation	< 1 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.25°
Wheel size	14 in and larger
Weight	6 kg
Vehicle	Automotive - LD veh.
Moment capacity	6.5 kN·m
Supply voltage	10 to 36 V DC
Axes	6 Axis

LW50
Vehicle	Automotive - LD veh.
Fx, Fz capacity	50 kN
Fy capacity	25 kN
Maximum recommended static weight	1 020 kg
Moment capacity	6.5 kN·m
Accelerometer range	100 g
Non-linearity	≤ 0.25 % FS
Hysteresis	≤ 0.25 % FS
Cross Axis Sensitivity after correction	≤ 0.4 % FS
Analog output	0-10 V DC, 0-5 V DC, ± 5 V DC, ± 10 V DC
Operating temperature	−40 to 177 °C
Angular Resolution	0.17°
Weight	4.4 kg
Axes	6 Axis

LW12.8-60
Fx, Fz capacity	60 kN
Fy capacity	30 kN
Maximum Torque Capacity [Mx, My, Mz]	9.0 kN·m
Accelerometer range	55 g
Sensor	4 arm strain gage bridges
Non-linearity	± 0.5 % FS
Hysteresis	< 0.5 % FS
Cross Axis Sensitivity after correction	< 0.5 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Vehicle	Automotive - LD veh.
Moment capacity	9 kN·m
Supply voltage	10 V DC
Axes	6 Axis

LW60
Fx, Fz capacity	60 kN
Fy capacity	35 kN
Maximum recommended static weight	1 225 kg
Maximum Torque Capacity [Mx, My, Mz]	8 kN·m / 9 kN·m / 8 kN·m
Accelerometer range	100 g
Sensor	4 arm strain gage bridges
Non-linearity	≤ 0.25 % FS
Hysteresis	≤ 0.25 % FS
Cross Axis Sensitivity after correction	≤ 0.4 % FS
Operating temperature	−40 to 177 °C
Angular Resolution	0.17°
Weight	5.7 kg
Vehicle	Automotive - LD veh.
Analog output	0-10 V DC
Supply voltage	10 V DC
Moment capacity	9 kN·m
Axes	6 Axis

LW65
Fx, Fz capacity	65 kN
Fy capacity	35 kN
Maximum recommended static weight	1 320 kg
Maximum Torque Capacity [Mx, My, Mz]	10.5 kN·m
Accelerometer range	100 g
Sensor	4 arm strain gage bridges
Non-linearity	≤ 0.2 % FS (Fx, Fy, Fz, My) · ≤ 0.4 % FS (Mx, Mz)
Hysteresis	≤ 0.25 % FS (Fx, Fz, My) · ≤ 0.45 % FS (Fy, Mx, Mz)
Cross Axis Sensitivity after correction	≤ 0.4 % FS
Operating temperature	−40 to 177 °C
Angular Resolution	0.17°
Vehicle	Automotive - LD veh.
Moment capacity	10.5 kN·m
Analog output	0-10 V DC
Supply voltage	10 V DC
Axes	6 Axis

LW-2T-20K
Fx, Fz capacity	90 kN
Fy capacity	45 kN
Maximum Torque Capacity [Mx, My, Mz]	15 kN·m (Mx, Mz) · 20 kN·m (My)
Accelerometer range	+/- 55 g
Sensor	4 arm strain gage bridges
Non-linearity	≤ 0.5 % FS
Hysteresis	< 0.5 % FS
Cross Axis Sensitivity after correction	< 1 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Vehicle	Forklift - Truck - Bus
Moment capacity	15 / 20 kN·m
Supply voltage	10 V DC
Axes	6 Axis

LW9.5-HS
Vehicle	Forklift - Truck - Bus
Fx, Fz capacity	93 kN
Fy capacity	45 kN
Moment capacity	9.5 kN·m
Accelerometer range	55 g
Non-linearity	< 1 % FS
Hysteresis	< 0.5 % FS
Cross Axis Sensitivity after correction	< 0.5 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Wheel size	10 in and larger
Analog output	0-10 V DC
Supply voltage	10 V DC
Axes	6 Axis

LW-2T-30K
Fx, Fz capacity	133 kN
Fy capacity	66 kN
Maximum Torque Capacity [Mx, My, Mz]	30 kN·m
Accelerometer range	+/- 55 g
Sensor	4 arm strain gage bridges
Non-linearity	≤ 0.5 % FS (Fx, Fz, My) · ≤ 0.75 % FS (Fy, Mx, Mz)
Hysteresis	< 0.5 % FS
Cross Axis Sensitivity after correction	< 0.5 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Wheel size	15 in and larger, single or dual
Hub bolt pattern	265 mm diameter and smaller
Weight	10 kg
Vehicle	Forklift - Truck - Bus
Moment capacity	30 kN·m
Supply voltage	10 V DC
Axes	6 Axis

LW150
Fx, Fz capacity	150 kN
Fy capacity	75 kN
Moment capacity	40 kN·m
Maximum recommended static weight	4 400 kg
Maximum Torque Capacity [Mx, My, Mz]	40 kN·m
Accelerometer range	100 g
Sensor	4 arm strain gage bridges
Non-linearity	≤ 0.5 % FS
Hysteresis	≤ 0.5 % FS
Cross Axis Sensitivity after correction	≤ 1 % FS
Operating temperature	−40 to 177 °C
Angular Resolution	0.17°
Weight	20.9 kg
Vehicle	Heavy-duty - Tractor
Supply voltage	10 V DC
Axes	6 Axis

LW700
Fx, Fz capacity	700 kN
Fy capacity	700 kN
Maximum recommended static weight	23 800 kg
Moment capacity	275 kN·m
Maximum Torque Capacity [Mx, My, Mz]	275 kN·m
Accelerometer range	100 g
Sensor	4 arm strain gage bridges
Non-linearity	≤ 0.5 % FS
Hysteresis	≤ 0.5 % FS
Cross Axis Sensitivity after correction	≤ 0.2 % FS
Operating temperature	−40 to 177 °C
Angular Resolution	0.17°
Weight	64.5 kg
Vehicle	Heavy-duty - Tractor
Supply voltage	10 V DC
Protection	IP67
Hub bolt pattern	425 mm bolt circle, standard hubs
Axes	6 Axis

LW-2T-40K
Fx, Fz capacity	178 kN
Fy capacity	89 kN
Maximum Torque Capacity [Mx, My, Mz]	40 kN·m
Accelerometer range	+/- 55 g
Sensor	4 arm strain gage bridges
Non-linearity	≤ 0.5 % FS (Fx, Fz, My) · ≤ 0.75 % FS (Mx, Mz) · ≤ 1.5 % FS (Fy)
Hysteresis	< 0.5 % FS
Cross Axis Sensitivity after correction	< 0.5 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Wheel size	15 in and larger, single or dual
Hub bolt pattern	265 mm diameter and smaller
Weight	10 kg
Vehicle	Heavy-duty - Tractor
Moment capacity	40 kN·m
Supply voltage	10 V DC
Axes	6 Axis

LW-2T-50K
Fx, Fz capacity	222 kN
Fy capacity	111 kN
Maximum Torque Capacity [Mx, My, Mz]	68 kN·m
Accelerometer range	55 g
Sensor	4 arm strain gage bridges
Non-linearity	± 1 % FS
Hysteresis	< 1 % FS
Cross Axis Sensitivity after correction	< 1 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Weight	16.1 Kg
Vehicle	Heavy-duty - Tractor
Moment capacity	68 kN·m
Supply voltage	10 V DC
Axes	6 Axis

LW-2T-60K-S
Fx, Fz capacity	300 kN
Fy capacity	150 kN
Maximum Torque Capacity [Mx, My, Mz]	81 kN·m
Accelerometer range	55 g
Sensor	4 arm strain gage bridges
Non-linearity	± 1 % FS
Hysteresis	< 0.5 % FS
Cross Axis Sensitivity after correction	< 1 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Wheel size	20 in and larger
Weight	26 kg
Vehicle	Heavy-duty - Tractor
Moment capacity	81 kN·m
Supply voltage	10 V DC
Axes	6 Axis

LW-2T-100K-S
Fx, Fz capacity	445 kN
Fy capacity	222 kN
Maximum Torque Capacity [Mx, My, Mz]	108 kN·m
Accelerometer range	+/- 55 g
Sensor	4 arm strain gage bridges
Non-linearity	± 1 % FS
Hysteresis	< 0.5 % FS
Cross Axis Sensitivity after correction	< 1 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Wheel size	20 in and larger
Weight	26 kg
Vehicle	Heavy-duty - Tractor
Moment capacity	108 kN·m
Analog output	0-10 V DC
Supply voltage	10 V DC
Axes	6 Axis

LW-2T-100K
Fx, Fz capacity	445 kN
Fy capacity	225 kN
Maximum Torque Capacity [Mx, My, Mz]	135 kN·m
Accelerometer range	+/- 55 g
Sensor	4 arm strain gage bridges
Non-linearity	± 1 % FS
Hysteresis	< 0.5 % FS
Cross Axis Sensitivity after correction	< 1 % FS
Operating temperature	−40 to 125 °C
Angular Resolution	0.17°
Vehicle	Heavy-duty - Tractor
Moment capacity	135 kN·m
Supply voltage	10 V DC
Axes	6 Axis

Shown: LW12.8-50. Drag to rotate, scroll to zoom. Download the files

03 · Configure

Request a quote

Pick the model, how the signal leaves the wheel and what goes with it. The summary becomes your quote request.

Unusual bolt pattern, motorsport hub, agricultural wheel: we build it around your wheel.

04 · Resources

Resources

Datasheets and manuals

Drawings

Drawing 1013093 (PDF)

CAD models

LW12.8 50 CAD (ZIP)

05 · Applications

Related applications

All applications

A question on this product?

Vehicle, wheel size, expected loads. An application engineer answers.

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LW series wheel force transducers 15.5 to 700 kN

All the wheel loads, one transducer

The numbers

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