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Chapter 7 Measuring Features and Defects
About the Accuracy Index
The accuracy index is a number that indicates the amount of magnification during shadow
or stereo measurements. The higher the accuracy index, the greater the magnification, the
more accurately you can place the measurement cursors, the more accurate your results.
When taking shadow or stereo measurements, you magnify the image not by zooming but
by moving the optical tip as close as you can to the target.
To learn about the settings for the accuracy index — how to turn it on and off, and how to
change the minimum value at which it flashes — see
Measurement"
Index=10.9
The accuracy index can be displayed to indicate
the amount of magnification you have achieved.
on page 43.
GE Inspection Technologies XLG3 VideoProbe System
"Reviewing Settings for
Accuracy index
(Proximity of tip to target)
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Troubleshooting
