Missing corner measurement on the Mentor Visual iQ+ VideoProbe 

In this article:

• Explains the Missing Corner Measurement on the Mentor Visual iQ+ VideoProbe, measuring missing area and edge lengths of damaged blade corners using precise 3D data for remote visual inspection. 
• Describes how a Measurement Plane and up to 23 cursors reconstruct broken edges, supported by the 3D Surface Mask to improve measurement accuracy. 
• Highlights turbine blade use cases and best practices for cursor and plane alignment to deliver reliable, repeatable results in industrial inspections. 

What is the missing corner measurement available on the Mentor Visual iQ+ VideoProbe?

Measures the area and edge lengths of a missing blade corner with one point designating the position of the tip of the missing corner and up to 23 additional points placed along the broken edge. Requires a Measurement Plane placed on the surface of the blade near the missing corner.

Example Applications:

• Turbine blade missing corners

3D Surface Mask:

When enabled in Settings, surface points very close to the Measurement Plane are shown in green. Surface points near the projected missing edge lines are shown in light blue

Best Practices to Improve Measurement Accuracy:

• Adjust the Measurement Plane cursor positions to maximize coverage of the green 3D Surface Mask on the blade near the missing corner.
• Adjust the Missing Corner cursors to align the dashed extension lines with the blade edges in the 2D image.