REA
VERIFIER
© REA Elektronik GmbH, 64367 Mühltal, Germany --- REA MLV-2D Manual Version 3 – 21/12/2015
Page 43 of 98
7.3.4
Verifying 3D parts
The term "3D parts" refers to coded parts from manufacturing (automotive,
electronics, mechanical engineering, aerospace, etc.) that exhibit irregular
geometries. In some cases, these parts can be measured with one of the three or four
standard positions. In other cases, this is impossible. For such cases, a measurement
apparatus (a fixture) must be constructed that ensures the code to be measured can
be positioned correctly according to the handling specifications (angle, distance,
shadows cast by component parts).
In the simplest case, a block of foamed material is used in which a cut-out is created
that matches the part to be measured. Here, the code must be positioned at precisely
the same height as the surface of the foam block. Wherever possible, the code
position and area must appear to the verifier as an even surface.
7.4
Live image
The live image is used as a positioning guide as described in the following section. For
measurement an image in the full resolution and adjusted exposure settings is
captured. This image keeps being available until the live image is used again. This
enables an identical captured image to be measured with different device settings. If a
new measurement image is required, then the live image function must be switched
on and a measurement must then be performed.
7.5
Performing measurements with the Windows software
Condition for performing correct measurements is observing the handling instructions
(see section 5) and the device position must have been selected properly (see section
7.3).
Live image is switched on to help with positioning. To do so, the <1>/<Pos.> button
can be used on the device or the live image icon can be clicked on the PC screen.
Start live image
Stop live image
