What is 3D phase measurement?
In this article:
- What 3D phase measurement is: A structured‑light, tip‑based technology that creates a 3D surface scan to locate, measure, and analyze surface indications without changing probes.
- How it works in practice: A wide field of view and large depth of field enable on‑demand, accurate measurements using the same optic used for inspection, reducing steps and inspection time.
- Why it matters for inspectors: Interactive 3D point clouds, refined cursor measurements, and full‑screen views improve measurement confidence and overall inspection productivity.
What is 3D phase measurement?
Using patented structured-light technology, 3D Phase Measurement enables inspectors to locate, measure, and analyze an indication using the same tip optic. The wide field of view and large depth of field allow for measuring with the same tips used for inspecting, thus eliminating the extra steps required to back out, change the tip, and then relocate the indication.
3D Phase Measurement provides accurate measurement “on-demand” while saving time and increasing overall inspection productivity. 3D Phase Measurement employs structured light patterns projected from the tip to create a 3D surface scan of the viewing area and can measure all aspects of surface indications.
Benefits of 3D Phase Measurement:
- View and manipulate a 3D point cloud for detailed assessment of surface shape and measurement correctness
- Full-screen viewing of measurement image for greater resolution
- Navigate, inspect and measure without changing probes or tip optics
- Available on 6.1 mm diameter probes
- Green side view tip provides ability to measure larger areas and at distances up to 4.7 inches
- Measurements can be refined by moving cursors within the point cloud
3D Stereo Measurement
3D Stereo Measurement utilizes the same optical tips as traditional Stereo Measurement, but employs more advanced calibration and processing algorithms to generate a full 3D point cloud representation of the target surface that can be viewed, manipulated, and analyzed
Benefits of 3D Stereo Measurement:
- More accurate, precise measurement compared to traditional or manually matched stereo measurement
- Provides better matching capabilities than Stereo Measurement on horizontal and repeating indications
- View the camera image and 3D point cloud side-by-side for highly efficient measurement analysis
- Measure effectively on shiny (or highly-reflective) surfaces which include detail, especially when using Image Brightness and Dark Boost
- Measure on surfaces with some minor movement present
- Available on 4.0, 6.1, 6.2 working channel and 8.4 mm probe diameters