Flatness and contour measurement of sheets
alpha.fi compact / Laser measurement system
Laser based measurement of flat geometries
Suitable for sheets and coils
- Scalable portal solution: length up to 5000 mm, width up to 3200 mm, thickness starting from 0.5 mm
- Fast measurement process up to 0.5 m/s, e.g. 4 m sheet in 8 s
- All shapes including any cutouts
- Suitable for production with high quality requirements and an interest in effective processes
- Quality proven (DIN/EN, ASTM), 100 % checked and documented
- Unmanned production due to fully automated inline measurement system
- Laser class 2, no special safety precautions required
Continuous measurement data acquisition
Measurement in scanning operation - High sampling rate and resolution
Inline or offline operation
1) portal moves and scans the static sheet
2) for flat objects of any shape and any cutouts/holes
3) scalable gantry width
4) integrated reference ruler with protection cover
5) scalable linear guide with servo drive for precise scan operation
6) measurement base from customer
High-density measurement data
2D or 3D visualization
A 2D or 3D graphic shows the contactless measured flatness and contour of each sheet manufactured in the production line. After the passage it is directly shown on the control panel. Through feedback of the measurement results into the process management additional cost-intensive errors in the production are avoided.
Standard configuration of laser measurement system
- compact portal system, measuring device capable
- automatic monitoring according to MSA method 1
- E-cabinet 2100 x 1200 x 800 (h x w x d in mm) including control and evaluation IPC
- operator-PC (desktop version including mouse, monitor, keyboard)
- 30 m cable set (max. 80 m)
- signal inputs for safety-door and E-stop
- standard interfaces Profinet, TCP/IP
- remote maintenance access via Ethernet
- graphical display of results as 2D heatmap and 3D view
- graphical display of the measurement characteristics flatness, length, width
- data storage and management, storage capacity 4 TB
- history view of stored measurement results
- display and storage of warning and fault messages
Technical data
| Measurement width | up to 3200 mm |
| Measurement length | up to 5000 mm |
| Scan speed | max. 0.5 m/s |
| Material width | 50 mm to measurement width |
| Material length | 100 mm to measurement length |
| Material thickness | 0.5 mm to 250 mm (others on request) |
| Material shape | flat objects of any shape and any cutouts/holes |
| Material type | all non-transparent materials |
| Material surface | no restrictions, smooth or textured, reflective or matt |
| Material temperature | max. 80 °C |
| Measurement resolution height | 5 μm |
| Measurement resolution width | 10 μm |
| Measurement resolution length | 5 μm |
| Measurement accuracy flatness | +/- 0.05 mm (without flatness influence of the base) |
| Measurement accuracy width | +/- 0.15 mm |
| Measurement accuracy length | +/- 0.10 mm |
| Flatness evaluation | acc. to DIN EN ISO 12781; strip edge waviness acc. to DIN EN 10251; various other ruler evaluations |
| Measurement principle | laser triangulation (laser light-section sensors) |
| Laser class | 2 (no laser safety officer) |
| Laser wave length | 660 nm (red) |
| Laser life time (MTBF) | 80000 h @ 20 °C |