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Making 3DPM Measurements (Depth Profile Example)
Note:
While the following procedure applies specifically to a Depth Profile measurement, refer to this procedure and the information in the section titled
Types of 3D Measurement
to conduct any type of 3DPM.
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– To create a Depth Profile measurement, place the first and second cursors on a flat surface on opposite sides of the area of interest. This procedure
is described in a following section.
Note:
Indication of Non-Measurable Area: When working with a 3D phase measurement image, certain parts of the image may not be measurable.
These parts may be too far away, too dark, or obscured by light reflections if the surface is highly reflective. The 3D Phase Measurement system will
display a red colored zone in those areas. The system will not compute a
measurement result when a cursor is positioned in a red colored area. The 3D
Phase Measurement system will display a yellow colored zone in areas where
accuracy is likely reduced. Cursor placement in a yellow colored area should
be avoided if possible.
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– Patented Zoom Window allows for precision positioning of the active cursor.
Tap the window’s edges (or tap on the cursor, then control with the joystick)
to adjust the active cursor position.
Click here to learn about turning the Zoom
window on or off.
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– Use to select from available Views.
Click here to learn about available Views.
Note: Depth Profile view (described in a following section) is only available if the
3DPM image includes a Depth Profile measurement.
Note: Measurements can be performed with any of the Image Views selected.
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– Point Cloud view, described below, allows the user to evaluate the level of
noise relative to indication size while verifying proper cursor and profile position
for the desired measurement. Choose between Measurement and Full Image to
view only the area around the active measurement or the entire image. When
a Point Cloud is displayed, turning on the Depth Map uses color to convey the
approximate depth of an indication (see left-hand scale).
Note: When Full Image is selected, all measurements appear in the Point Cloud
view and the Depth Map colors represent distances relative to the Tip-to-Target
Distance. When Measurement Image is selected, only the active measurement
appears and the Depth Map colors represent distances relative to the user-
defined depth-measurement reference plane.
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– The Depth Profile view is available only after a Depth Profile measurement
has been made.
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– The Depth Profile view provides a cross-section with the line connecting the
two reference cursors serving as a sectioning line.
