The microstructure of the road surface (< 1mm) contributes to grip and rolling resistance of tyres. Unfortunately the microstructure is not easily accessible by common measurement technologies (slow & low accuracy).
An accurate measurement of the road surface is of utmost importance for:
- scientific research on tyre-road interaction (noise, grip, rolling resistance, …)
- road maintenance and road condition monitoring
- The AIT 3D road texture scanner applies the stereo method by using two xposure line scan cameras developed by AIT.
- The AIT xposure camera is the world’s fastest line scan camera with a scanning rate of 600 kHz.
- This high-speed equipment enables us to measure the road surface at a maximum speed of 130 km/h.
- In the post processing a resolution of 0,060 mm in all three spatial directions is achieved.
- In-situ measurements on the road are easily done and no traffic lanes need to be closed for measurements.
- The simultaneous acquisition and coupled modelling of road surface, tyre/road noise and road texture is made possible.
- The scanner can be mounted easily on a car or a measurement trailer.
- No laser radiation necessary.
- Measurement is possible under traffic combined with rolling noise or grip.
- Highly precise input data for further modelling of tyre-road interaction is generated.
|_______________| approx. 1 cm
- high accuracy (resolution of 60 μm in X/Y/Z)
- high measurement speed of 130 km/h
- high raw data rate of 2.4 Gbyte/s
- mountable on a car or measurement trailer
- “Lab on the road” for science and industry
- Automated road condition monitoring for road authorities