Positioning the scanner
Below are guidelines for positioning the scanner to ensure accurate and sufficient target acquisition for registration.
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Position the scanner in the center of the target field. Ensure that you have a clear view of the object to be scanned and at least three targets.
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Ensure that the angle of incidence of the laser beam on the target is larger than 45°.
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Angle of incidence is not a concern when using spheres.
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Self printed targets must have a minimum black/white contrast of 6:1 in the scan. Please test this by frontal (angle 90°) scanning a target and analyze the contrast of the target in your field software.
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The recommended distance between the scanner and targets (DIN A4) depends on the scan resolution.
| Resolution | Angle of Incidence 90° | Angle of Incidence 60° | Angle of Incidence 45° |
|---|---|---|---|
|
Low |
1 m to 6 m |
1 m to 5 m |
1 m to 4 m |
| Middle | 1 m to 10 m | 1 m to 10 m | 1 m to 8 m |
| High | 1 m to 25 m | 1 m to 22 m | 1 m to 20 m |
| High ×2 | 1 m to 50 m | 1 m to 45 m | 1 m to 35 m |
| High ×4 | 1 m to 100 m | 1 m to 90 m | 1 m to 70 m |
| High ×10 | 1 m to 120 m | 1 m to 110 m | 1 m to 90 m |
With a smaller angle of incidence, the possible target distance is reduced. The maximum angle based on the normal of the target should be less than ±45°.
