This dataset is high on our “coolness scale.” It’s nearly 250 mm in width—quite a bit larger than our typical surface roughness measurements. It does an excellent job of showing how longer-wavelength waviness and form can be analyzed. There are some small areas of bad data which can be repaired with the OmniSurf3D Surface Editor … Read more
You may recognize this image from our blog post (Image Overlays in OmniSurf3D) showing how image overlays can provide a more realistic sense of a surface. The .os3d file format can include an image overlay file within it. In OmniSurf3D click the camera toolbar icon to toggle the image overlay on or off (the button … Read more
This data is representative of a range of parts with a conical overall shape (valve seats, as an example). When dealing with data such as this it’s important to turn off data filling (Analysis Setting > Missing Data Filling > None) to avoid bridging the empty inner and outer areas. If you remove the cone … Read more
In our blog post, Comparing Apples and Oranges, we talk about how a properly scaled profile graph can give great insight into surface features—while an improperly scaled image can have you chasing non-existent process problems. This data of an orange, combined with the data of apple skin, can help show the effects of vertical scale when … Read more
In our blog post, Comparing Apples and Oranges, we talk about how a properly scaled profile graph can give great insight into surface features—while an improperly scaled image can have you chasing non-existent process problems. This data of an apple, combined with the data from an orange peel, can help show the effects of vertical scale … Read more
This segment of the edge of a 2 Euro coin includes an interesting star shape embedded in the edge of the coin. Try removing cylindrical form (Analysis Settings > Geometry/Form) and displaying the Wavelength Content graph to reveal the periodic pattern. Measured with a Zygo ZeGage Plus, 10x objective (desampled). Data source: Digital Metrology … Read more
The shiny side of aluminum foil. This side of the foil has long striations across the surface, whereas the dull side (also in the library) has a lot of fine, speckled detail. The difference all occurs in the very short wavelength domain, around 20 microns—removing a 4th order polynomial as the Reference Geometry reveals this … Read more
The dull side of aluminum foil. This side of the foil has a lot of fine, speckled detail, whereas the shiny side (also in the library) has many striations across the surface. The difference all occurs in the very short wavelength domain, around 20 microns—removing a 4th order polynomial as the Reference Geometry reveals this … Read more