Automatic reading of part numbers,
serial numbers and batch information
formed into the surface of moulded
components can be difficult using
some 2D vision systems due to the
low contrast between code and
component surface. Stemmer
Imaging’s LMI Gocator 3D smart
camera can image these codes, even
where they are at varying heights.

Gocator line profiling sensors
allow the measurement of surface
topography and profile data of the
component. The 3D point cloud
(height map) from the Gocator can
be used to inspect dimensions and
locations of the moulded characters.

Codes and characters are colourcoded
according to their height
allowing simultaneous display of
characters at varying heights on the
component surface.

Height map data can be analysed
and read by interfacing the Gocator
to either Sherlock or Common
Vision Blox software. Sherlock is a
machine vision software interface
from Telydyne DALSA. Common
Vision Blox is Stemmer Imaging’s
own software platform for quick
vision application development.