Wheel Instrumentation System wheel slip ring assembly
Strain gage and thermocouple signals off a rotating wheel, on the vehicle's own wheel, on track or off-road.
- Up to 36
- Circuits
- 2 000 rpm
- Max speed
- 500 mA
- Max current per circuit
- 1 024 ppr
- Optional encoder, up to
- Signalsstrain gage, thermocouple, voltage, ICP
- Operating temperature−40 to 100 °C
- Length80 mm
- Connectorsmilitary grade, rotor and stator
Bolts to the vehicle's own wheel
The system mounts on the original wheel of the vehicle through a plate and collet lug nuts machined for that vehicle. It fits passenger cars, utility vehicles, heavy trucks and agricultural vehicles, and it can be used on electric vehicles, including with the motor at the wheel.
A low-resistance slip ring carries the signals in analog form. It is designed for low-voltage signals such as thermocouples and strain gages, so no pre-amplifier stage is needed. Up to 30 measurements can be collected at the same time.
The assembly is waterproof and works in mud and snow. An optional encoder, up to 1 024 ppr, adds position, speed, acceleration or distance. Signal conditioners and on-board acquisition systems are available as options.
Specifications
| Circuits | 4 · 6 · 10 · 20 · 36 |
|---|---|
| Input | Strain gage bridge · Thermocouple · Voltage · IEPE (IEPE: ICP) |
| Rotation sensor | None · Encoder |
| Encoder resolution | 1 024 ppr (up to) |
| Current per circuit | 500 mA |
| Mounting | On the wheel (with plate and collet lug nuts) |
| Max speed | 2 000 rpm |
| Dimensions | length 80 mm |
| Operating temperature | −40 to 100 °C |
| Protection | Weatherproof (waterproof, for on-road and off-road driving) |
| Connections | Connector (rotor and stator: military-grade connector) |
Resources
Datasheets and manuals
CAD models
None for this product.
Related applications
-
Powertrain Axle and half-shaft torque Drive torque measured on the production shaft, with a slip ring or telemetry to bring the signal out. -
Powertrain Truck solid axle torque Drive torque on a truck solid axle, read by strain gages inside the shaft and brought out at the wheel. -
Electric In-wheel motor torque Drive and brake torque of each in-wheel motor, measured between the hub and the rim. -
Temperature Temperature on rotating parts The temperature of a bearing, a compressor or a brake rotor, read while the part rotates under load.
In the same family
- Wheel speed alone Wheel Pulse Transducer
Wheel speed, angular position and direction of rotation, read outboard of the wheel at up to 5 000 ppr.
- Side slip angle TrueSlip
Side slip angle measured optically, on a wheel or on the vehicle body, in any light.
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