Optical Profilers Vs. Stylus Profilometers

Optical profilers have many advantages over stylus profilometers:

Optical Profilers Measure Over Large Areas Quickly

In the same few seconds that it takes to make a stylus-profiler line scan, the Profilm3D optical profiler measures an area that's several square millimeters. Roughness calculated with the resulting area scan produces measurements that are statistically more significant and representative of the surface than those from a line scan. If you're using a stylus profilometer to scan the same size area, be prepared to spend several minutes waiting (and hope that you have your scan parameters set right!)

Optical Profilers are Easy to Use

Once your measurement recipe is set up (which our experts are happy to help you do), just sit your sample on the Profilm3D stage and click the Measure button. If you're interested in measuring a particular microscopic location, the Profilm3D’s automated XY stage makes it easy to find. Easier still, as long as your area-of-interest is within the Profilm3D’s big 2mm x 1.7mm field-of-view (with a 10x objective lens), you can easily analyze different areas.

Non-Contact Means Non-Flat Samples Can Be Measured

Because optical profilometry is a non-contact technique, you can easily measure curved and other non-flat surfaces. Shape removal (aka form removal) and filtering come standard with the Profilm3D and can easily be added to your recipe - making measurement of surface finish, texture, and roughness of curved surfaces fast and easy. Profiles can also be leveled post-scan – another function that can be made automatic by adding it to one of your measurement recipes. In addition to all this, being a non-contact method means that optical profilers won't damage your soft and delicate films the way contact stylus profilers do.

No Consumables

If you have a stylus profilometer, you know that tip damage is a constant concern, and that tip replacement isn't quick or cheap. In contrast, optical profilers do not contact your sample and are about as fragile as your average microscope. The Profilm3D light source is an LED, so there are no lamps (or anything else) to periodically replace.

Optical Profilers are Fun!

You get to see a visual 3D representation of your sample – not just the squiggly line of the typical stylus profilometer trace. And with a SpaceMouse®, your 3D images are easily manipulated in all three dimensions.