Surface metrology with a smart phone?

The iPhone 12 Pro includes LIDAR technology, primarily to improve the speed and accuracy of the camera’s focus. But you can also use it to map the shapes and sizes of objects. App developers are in the beginning stages of some amazing work to take advantage of this technology. But OmniSurf3D is already there…

Image rotation and animation with OmniSurf3D

When it comes to understanding surface texture, one of the most powerful tools we have is an interactive visual of the surface. A 3D surface texture measurement tells a great deal about a surface, such as how features relate to each other—information that can only be hinted at by 2D measurements. 3D measurements help you … Read more

Measuring gear tooth waviness

Gear tooth waviness is a hot topic these days. As automobile engines have grown quieter, other noise sources, such as gears, are getting much more attention. We know that mid-wavelength waviness (two to three peaks per gear tooth) correlates to gear noise. What we have been lacking, however, are parameters that correlate to that noise, … Read more

Check out the “2D & 3D Parameters” podcast

Digital Metrology’s Mark Malburg was a guest speaker on Zygo Corporation’s recent podcast, “2D and 3D Parameters: Should you stick to the typical results?” Dr. Malburg and Carl Musolff, retired senior technical advisor from Cummins Corporation, joined host Tyler Kern to discuss how surface texture parameters are specified and measured in order to control component … Read more

Surface analysis when working remotely

When you send parts to a measurement lab, you likely receive back a PDF file with some parameter values, and maybe a part profile. That’s probably just enough information for you to show whether the parts meet spec. But you aren’t likely to get any real sense of how that surface looks, feels, or performs. To get that kind of understanding, you need to be able to interact with the data: spin, it, filter it, zoom in, zoom out, etc.

Comparing apples and oranges?

A properly scaled photo or graph can give great insight into surface texture features. An improperly scaled image, however, can get you running in circles. If you are trying to compare process data, an incorrectly scaled image may (incorrectly) suggest a change with your process, or it could mask an actual, lurking problem.