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Product description
3.1
Introduction
Ranger3 is a high-speed 3D camera intended to be the vision component in a machine
vision system. Ranger3 makes measurements on the objects that pass in front of the
camera, and sends the measurement results to a PC for further processing. The mea‐
surements can be started and stopped from the PC, and triggered by encoders and
photoelectric switches in the vision system.
The main function of Ranger3 is to measure 3D shape of objects by the use of laser
line triangulation. This can be used for example for generating 3D images of the object,
for size rejection or volume measurement, or for finding shape defects. In the image
below, the colors represent depth.
Figure 1: Example of 3D image
3.2
Measuring with a 3D camera
Each time the 3D camera makes a measurement, it measures along a cross-section of
the object in front of it. The result of a measurement is a profile, containing one value
for each measured point along the cross-section – for example the height of the object
along its width.
For the camera to measure an entire object, the object (or the camera and lighting)
must be moved so that the camera can make a series of measurements along the
object. The result of such a measurement is a collection of profiles, where each profile
contains the measurement of a cross-section at a certain location along the transporta‐
tion direction.
PRODUCT DESCRIPTION
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8020774/14IM/2019-07 | SICK
O P E R A T I N G I N S T R U C T I O N S | Ranger3
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Subject to change without notice
