Line scanner
Laser
Scanner: The Laser Scanner provides 2-dimensional measurements of height
profiles. A laser line is
projected onto the target and the distance to the object surface is measured by
means of triangulation.
The
laser line is produced by a pulsed laser diode and line generating optics. The
light diffuse reflected fom
the target is projected onto a CCD-array. The different height contour of the
object results in an excursion of
the laser line. This excursion is corrected
trigonometrically and evaluated. Beside the information about the
height profile (z-axis) the position of the scanning point at the laser line (x-axis)
is disposed.
The
result is the contour of the object at the point of measurement. A complete scan
is done every 20 msec
with 283 measurement points or every 40 msec with
566 measurement points.
Technical
Data:
Measurement
range z
[mm]
8 - 1200
Scanning range x
[mm]
5 - 600
Working distance
[mm]
29 - 900
Resolution z
[µm]
30 - 3000
Resolution x
[µm]
30 - 2000
Laser wave length
[nm]
670
Laser class
2
Scanning rate, adjustable
[scans/s]
25; 50
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