Penny 1 – Full Coin

Surface Texture of a United States One Cent Penny Coin - Digital Metrology Solutions

This series of data captures a US one cent coin with two different systems, at 3 resolutions:

  • Penny-All.os3d, this dataset, shows the entire back of the coin, measured with a Keyence VR-3100 at 12x.
  • PennyBack-LincolnAndPillars measured with a Zygo NewView 8300 at 2.75x.
  • PennyBack-Lincoln measured with a Zygo NewView 8300 at 10x.

We featured this data in our blog post, How much does it cost to compare measurement systems? because it helps to highlight the difference in lateral resolution and  field of view between various measurement technologies. In the full Penny data (this dataset) , we can just barely make out Abe Lincoln seated between the columns of the Memorial (above). Compare this to the PennyBack-LincolnAndPillars data, taken with Zygo NewView 8300 at 2.75x:

White light interferometer (3D optical profiler) image of surface texture of a penny zoomed - Digital Metrology -

and PennyBack-Lincoln, taken with the NewView at 10x:

White light interferometer (3D optical profiler) image of surface texture of a penny zoomed - Digital Metrology -

For this dataset, removing a plane (Analysis Settings > Geometry/Form > Plane) results in a good representation of the surface.  The circular cropping tool (Analysis Menu > Data Cropping Tool > Crop to Circle/Ellipse) works nicely for  discarding the unwanted edges.

Data source:  Digital Metrology Solutions (www.digitalmetrology.com)

Please log in below to download the datasets. If you’re new to the page, please take a moment to register here.


I forgot my password


 

How to cite

If you use this dataset, please reference it as follows:

Digital Metrology Solutions. “Surface Library.” Digitalmetrology, digitalmetrology.com/dataset/penny-three-datasets. Accessed Feb 29, 2024.