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Troubleshooting Measurements
3D Phase, 3D Stereo, or Stereo Measurements
• Move the probe tip as close as possible to the target, maximizing magnification.
• Verify that the OTA len is clean and is threaded on to the probe head securely.
• Measure the target contained in the verification block to ensure that no tip damage has occurred.
Click here to learn more about Verifying Measurement
OTA's.
• Verify that the serial number engraved on the OTA matches the serial number selected in the software for measurement.
• Activate the zoom window to most accurately place the measurement cursors.
3D Phase Measurements
• Be sure to hold the probe still for approximately one second during the surface scan. Do not move the probe until after the Capturing Images message
disappears.
• Position the probe tip as close as possible. It is acceptable to be slightly out of focus for very small indications.
• Make sure all measurement-tip surfaces are clean. Wipe with a clean cloth and alcohol.
• Check point cloud view for excessive waviness or ripple, which would indicate dirt or oil contamination or tip damage.
• Try a non-perpendicular view, such as 30-45°. This often significantly decreases the noise level in the data, especially for surfaces that are shiny or
have a speckled appearance.
• Ensure that ambient light is not present on the target while capturing the 3D Phase image.
3D Stereo and Stereo Measurements
• Avoid placing cursors in areas of significant glare. If necessary, adjust the Brightness, HDR, and/or Dark Boost. Repositioning the probe tip to enhance
details and reduce glare may be required.
• Verify that the object to be measured is near the center of the screen, with as much magnification as possible while still being in focus.
• Review guidelines under
Achieving a Suitable Image for Making Stereo Measurements
• Verify that the matching cursor is correct within 1 pixel. If you cannot clearly see where the match point should be, select a different point, or capture
the image from a different angle that better reveals details to allow better matching.
Содержание Everest Mentor Visual iQ VideoProbe
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