FOCUSING CHECK
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It
is common knowledge that a video system for dimensional measurements
of precision bases itself, besides, on the learning by the software
of a calibration scale whose dividing notches have been focalized in
a perfect way on the monitor for every single objective to be calibrated.
Therefore also the measurements to be made of the objects surfaces must be perfectly focalized, otherwise the same will result with values also very different in respect of the real ones. The focusing can be obtained in three different ways: 1. manual 2. semiautomatic 3. automatic Skipping the manual focusing, that is designed for not-motorized devices where the operator has a valuable role in good results, the focusing in a completely automatic mode and semiautomatic mode is a characteristic of the VCR-Z Professional series (motorized). The semiautomatic focus search is developed in 4 phases: 1st phase: the operator selects from the menu the type of optics to be used 2nd phase: " manually focuses the image on the monitor 3rd phase: " selects the interested zone 4th phase: " makes himself driven from the VideoKLite in the focusing A traffic lights will show when one is near or focalized while a histogram and a numerical value will drive to the focusing with a precision also of 1 micron if the VCR-Z is a motorized type (PRO) and of 1 hundredth of mm if it is a manual type (VCR-ZLite). |
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