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Helios2 Performance Results
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Helios2 Accuracy| Distance (m) | Accuracy |
|---|
| 1250mm Mode (up to 1.25m) | ± 4 mm |
| 3000mm Mode (up to 3.0m) | ± 10 mm |
| 4000mm Mode (up to 4.0m) | ± 10 mm + 0.25% of depth |
| 5000mm Mode (up to 5.0m) | ± 4 mm + 0.1% of depth |
| 6000mm Mode (up to 6.0m) | ± 10 mm + 0.5% of depth |
| 8300mm Mode (up to 8.3m) | ± 4 mm +0.2% of depth |
Helios2 Precision| Distance (m) | 1250mm Mode | 3000mm Mode | 4000mm Mode | 5000mm Mode | 6000mm Mode | 8300mm Mode |
|---|
| 0.5* | 1.0 mm | 1.9 mm | 2.1 mm | 0.7 mm | 3.6 mm | 0.8 mm |
| 1 | 0.8 mm | 1.3 mm | 2.1 mm | 0.6 mm | 2.7 mm | 0.6 mm |
| 1.5 | 1.1 mm | 2.5 mm | 2.9 mm | 0.9 mm | 4.0 mm | 1.1 mm |
| 2 | 1.8 mm | 3.7 mm | 4.9 mm | 1.4 mm | 7.8 mm | 1.7 mm |
| 3 | | 5.7 mm | 8.6 mm | 2.2 mm | 10.0 mm | 2.5 mm |
| 4 | | | 12.3 mm | 3.3 mm | 15.7 mm | 4.1 mm |
| 5 | | | | 5.1 mm | 28.1 mm | 6.1 mm |
| 6 | | | | | 30.1 mm | 7.9 mm |
| 7 | | | | | | 11.8 mm |
| 8 | | | | | | 14.48 mm |
*0.5 m distance precision measured with 250 µs exposure time, all other distances using 1000 µs exposure time measured with white paper target.
Test Conditions:
- Target: White paper mounted on bar attached to motion stage
- Helios2 positioning: mounted on tripod, laser distance meter used to measure distance from case front to stage zero position
- Camera setting: Coord3D_C16 Pixel Format, bilateral filtering OFF, camera warmed up for 20 minutes.
- Imaging environment: Room light on during testing, black material used to minimize reflections off floor
- Motion stage moved in 50mm steps, for each step measure depth over 10×10 pixel ROI at image center, repeat 32 times at each position
- Accuracy measured as difference between camera’s average measured depth across the ROI and 32 images and the ground truth depth (stage zero distance + stage position)
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