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4
Calibrating the ContourGT-K System
All the calibrations required for the ContourGT-K system are performed at the factory and these
calibrations are extremely stable over time. As such, it is generally unnecessary to re-calibrate the
system.
However, the Vision64 software includes algorithms that enable calibration of the scanner and
various characteristics of the optics. These calibrations, and the circumstances under which they
may be required, are described in this chapter.
4.1 Scanner Calibration
Recalibration of the ContourGT-K scanner requires expensive calibration standards (Figure 4.1
shows an example). Relying on the robust factory calibration of the ContourGT-K relieves you of
the expense associated with acquisition and maintenance of these standards. If, however, scanner
calibration is ever required it can be effected by following the process below.
Figure 4.1: Step Standard
All scanner calibrations are initiated by clicking the Calibrate button
on the Measurement Setup ribbon.
To begin:
1. Place the step standard on the stage.
2. Prepare the system to perform a 1x speed VSI measurement on the step and perform a test
measurement to make sure that your setup is good. (Note, the calibration algorithm performs
1x VSI measurements so your setup readies the system for calibration measurements).
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