HEIDENHAIN IK 5494-2D - Manual (Page 100)

78 QC5200 Series User’s Guide
Enabling and disabling light associations
Enable the light adjustments associated with magnifications by checking the
Probe/Set Lights w/Mag Changes menu item.
Using video probes
A wide variety of video probes is available for measuring regular geometric features such as points, lines,
arcs, circles and slots. Video probes are also available for measuring irregular features, features that extend
beyond the field of view and entire part profiles. In addition, pass/fail charts can be imported and used to
facilitate visual inspections.
Each video probe is comprised of one or
more scan lines, each of which acquires a
point as the scan crosses an edge bounded
by light and dark areas of the screen image.
For example, the Simple probe consists of
a single scan line, while the default buffer
probe contains 50 scan lines.
NOTE
The number of points acquired by multiscan video probes can be changed by supervi-
sors, distributors and OEMs in the Probe Library.
Since many video probes simply consist of multiple scan lines, it is technically possible for these probes to
measure several different feature types. However, each video probe is intended for specific measurements
and measuring features for which the probe
was not specifically designed is discour-
aged. For example, while a circle probe can
perform a line measurement, higher accuracy
and repeatability will be obtained by using
the buffer probe to measure a line.
The video probe descriptions presented in
this chapter include recommended feature
measurements for each probe.
The Simple probe acquires one
point with a single scan
The Buffer probe acquires
many points with 50 scans
While most probes can scan
many feature types...
always use a probe intended
for the feature