Optical Profilometry

The Zygo Corporation ZeGage optical profilometer is available at Behrend for optical, non-contact measurements of a sample’s surface. SKF has generously allowed the optical profilometer to reside at Behrend in the AMIC building.

Zygo ZeGage optical profilometer

 

Sample Specifications

Samples must fit within the working area of the optical profilometer. The maximum z-height is 100 mm, thus samples must have a height less than this. The x/y stage can move a maximum 100 mm by 100 mm, thus the area of analysis must be less than this.

The maximum vertical scan range is 20 mm. Features of interest on a sample surface should be less than 20 mm in height variability in order for the optical profilometer to be able to capture the profile in a single scan.

 

Advancing Research

Using this instrument, researchers at Behrend have been able to generate 2D and 3D representations of a sample surface, as well as make fine measurements of features on a sample surface. Some examples of researchers at Behrend making use of the optical profilometer include:

  • Dr. Paul Lynch and Benjamin Fahrney were trying to measure surface finish of additively manufactured parts to find if there was a significant difference in the quality of parts that were printed on a desk, on the carpet, and on dampening pads.

Benjamin Fahrney operating the optical profilometer.

  • Dr. Beth Last analyzed the surface of a fish scale using the optical profilometer. The hope was that observed rings and ridges would provide insight into the age of the fish. The scale is taken from a fish captured by Dr. Lynne Beaty.

Backside of a fish scale, as seen using an optical profilometer.

 

Interested in using the optical profilometer or having Behrend staff run samples on the profilometer for you? Please complete our contact page