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14. Operating principle of the scanner
The most important components of the scanner are the 3D sensor and a positioning mechanism.
1
2
3
4
The positioning mechanism in the interior of the scanner consist of a rotary and swivel axis driven by an electric motor
(4) as well as an automatic z-axis (2).
The freely rotating Multisplit base plate (3) positions the object to be measured with regard to the 3D sensor (1), which
is located above the swivel axis.
The swivel axis moves the rotary axis with the object holder to the side so
that the 3D sensor can capture the object to be measured from the side.
During a measurement, the 3D sensor projects a striped pattern onto the
object being scanned.
The light stripes are generated with a white or blue LED light. A blue LED light is used in combination with a 5 Mpx
camera, as it requires more brightness and sharper contrasts.
The camera records the striped pattern. With the aid of several camera images taken from different angles, Aadva
Scan calculates a 3-dimensional image of the object.