System components:

• 2 high speed cameras and 2 CFK wheel adapters per axle
• mounting frame
• accessory set including targets, syncbox, and controlling computer with WheelWatch software

Position accuracy:
X, Y, Z

± 0.1 mm
(0.004“)

Angular accuracy

± 0,015°

Measurement volume

1 m x 1 m x 0.5 m
(40“ x 40“ x 20“)

Distance camera /wheel adapter

approx. 0.5 m (20“)

Measurement range (track/camber)

± 45°

Spin angle range

unlimited

Acquisition frequency

490 Hz

Material

carbon fiber

Diameter

400 mm (16”)

Weight

< 400 g (< 1lb)

Targets

ANCO on retro reflective film High Gain 7610

Type of camera

high speed CMOS camera

Resolution

1280 x 1024 pixels

Max. vision frequency

490 Hz

Exposure time

10 µs - 1 s

Lens

high performance lens, f=10 mm, minimal distortion

Flash

high performance LED ringlight, 10-100 μs

Data transmission

TCP/IP

Synchronization

digital time stamp / external trigger signal < 5 μs / master for synchronization

Power supply

test drive: 12 Volt vehicle power system; power consumption: 26 W for 2 cameras; test station:
90-240 Volt

• camera calibration
• axle calibration
• determination of reference points
• transformation in vehicle coordinate system
• data transfer via data file, analog or digital (TCP/IP)
• calculation of axle and wheel parameters

Test drive

notebook computer

Test station

desktop computer