Area; Multi-Segment; Depth Profile - GE Mentor Visual iQ Manual Del Usuario

Area

Area

Multi-segment

Multi-segment
Measures the total length along a curved or jagged path using multiple cursors placed along the path of the indication. When
Measures the total length along a curved or jagged path using multiple cursors placed along the path of the indication. When
three cursors are used, it also provides the 3D angle between the line segments.
three cursors are used, it also provides the 3D angle between the line segments.
Example Applications:
Example Applications:
Total travel path of a complex crack
• • Total travel path of a complex crack
• Total length along a curved surface Total length along a curved surface
•
Use three cursors to measure the angle between a turbine
• Use three cursors to measure the angle between a turbine
•
blade edge and an indication or blended area
blade edge and an indication or blended area
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Measures a planar area on a surface by outlining an indication
Measures a planar area on a surface by outlining an indication
with multiple cursor points.
with multiple cursor points.
Example Applications:
Example Applications:
• Missing blade corners using a Measurement Plane Missing blade corners using a Measurement Plane
•
• Coating loss Coating loss
•
Surface area of pitting or corrosion
• • Surface area of pitting or corrosion
FOD impact damage
• • FOD impact damage
Best Practices to Improve Measurement Accuracy:
Best Practices to Improve Measurement Accuracy:
Check the point cloud to ensure accurate cursor placement .
• Check the point cloud to ensure accurate cursor placement. •
When measuring a curved surface, reduce error by
• When measuring a curved surface, reduce error by •
measuring multiple smaller areas and combining the results.
measuring multiple smaller areas and combining the results.
• Use with a Measurement Plane to measure area and Use with a Measurement Plane to measure area and
•
lengths of blade missing corners. See Measurement Plane
lengths of blade missing corners. See Measurement Plane
section for details. section for details.
Best Practices to Improve Measurement Accuracy:
Best Practices to Improve Measurement Accuracy:
Check the point cloud to ensure accurate cursor placement .
• Check the point cloud to ensure accurate cursor placement. •
• Space your cursors as far apart as possible while following Space your cursors as far apart as possible while following
•
the path of the indication to minimize the effect of 3D data
the path of the indication to minimize the effect of 3D data
noise on the result .
noise on the result.
If measuring an angle (only provided with three cursor
• If measuring an angle (only provided with three cursor •
Multi-segment) along an edge, accuracy may be improved Multi-segment) along an edge, accuracy may be improved
by using a Measurement Plane.
by using a Measurement Plane.

Depth Profile

Depth Profile
From any viewing angle, maps the perpendicular distance from a reference plane along a line between two selected points and
From any viewing angle, maps the perpendicular distance from a reference plane along a line between two selected points and
automatically identifies the deepest or highest point.
automatically identifies the deepest or highest point.
Example Applications: Example Applications:
Depth of isolated corrosion or erosion pits
• • Depth of isolated corrosion or erosion pits
Depth of FOD impact damage
• • Depth of FOD impact damage
Weld height or wear groove depth
• Weld height or wear groove depth •
Quick assessment of surface contours
• Quick assessment of surface contours •
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Best Practices to Improve Measurement Accuracy:
Best Practices to Improve Measurement Accuracy:
Position the measurement tip as close as possible to the
• Position the measurement tip as close as possible to the
•
indication to increase measurement accuracy.
indication to increase measurement accuracy.
Enable depth map mode in the point cloud view to better
• • Enable depth map mode in the point cloud view to better
see surface contours and ensure that you are measuring
see surface contours and ensure that you are measuring
the desired point—often the highest or lowest on an
the desired point—often the highest or lowest on an
indication—and that the indication clearly stands out from
indication—and that the indication clearly stands out from
the 3D data noise.
the 3D data noise.
• The green Surface Mask visible when a cursor is moved The green Surface Mask visible when a cursor is moved
•
indicates points very close to the reference plane. Adjust indicates points very close to the reference plane. Adjust
the cursor positions to maximize the amount of green on
the cursor positions to maximize the amount of green on
the reference surface. The 3D point cloud view can also be the reference surface. The 3D point cloud view can also be
used to verify that the reference plane, indicated by a blue used to verify that the reference plane, indicated by a blue
square, is accurately aligned with the reference surface. square, is accurately aligned with the reference surface.
If the cursor turns red, this indicates improper placement .
• If the cursor turns red, this indicates improper placement.
•
• As the reference plane is determined by fitting to all the As the reference plane is determined by fitting to all the
•
surface data within both cursor perimeters, ensure that surface data within both cursor perimeters, ensure that
the two cursors are fully positioned on the same plane of
the two cursors are fully positioned on the same plane of
interest—not overlapping an edge, or on offset or curved interest—not overlapping an edge, or on offset or curved
surfaces that could cause measurement error. surfaces that could cause measurement error.
• If measuring on a curved surface, such as inside a small If measuring on a curved surface, such as inside a small
•
pipe, space the cursors apart in a direction parallel to the
pipe, space the cursors apart in a direction parallel to the
curvature to keep them on the same plane. In the point curvature to keep them on the same plane. In the point
cloud view, the blue reference-plane square should appear cloud view, the blue reference-plane square should appear
tangent to the reference surface. tangent to the reference surface.
In applications seeking the deepest or highest point , Area
• In applications seeking the deepest or highest point, Area
•
Depth Profile or Depth may be preferred over Depth Profile
Depth Profile or Depth may be preferred over Depth Profile
as they automatically identify the deepest or highest point as they automatically identify the deepest or highest point
in an area. in an area.
VideoProbe 3D Measurement Handbook
VideoProbe 3D Measurement Handbook | 11
05/2018