GE XL Vu+ VideoProbe, Operating Manual

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Chapter 6. Measurement
XL Vu+™ VideoProbe® Operating Manual 101
6.5.1 Positioning the Probe Tip for Maximum Accuracy (cont.)
6.5.2 Accuracy Index
The accuracy index is a number that indicates the amount of magnification during
stereo measurements. The higher the accuracy index, the greater the magnification.
The greater the magnification, the more accurately you can place the measurement
cursors, allowing for more accurate results.
When taking stereo measurements, you magnify the image, not by zooming, but by
moving the optical tip as close as you can to the target.
Figure 82: Bad Example
•
Object is not fully visible on the
right side.
•
Object is not well lit.
•
Object is not oriented to allow
proper cursor placement.
Figure 83: Good Example
•
Object is fully visible on both sides.
•
Object is well lit.
•
Object is oriented to allow proper
cursor placement.