The Measure of Metrology
Saturday, September 2, 2017
Metrology might sound like a a profession that requires a four-year degree, or even something to do with rocks, but the average person uses metrology several times a day. If you can quantify it, you’re applying metrology – the science of measurement.
In the optics industry, the measurements we take can be in minute, given the nature of our products. Precision metrology is employed to achieve the highest level of accuracy and reliability in all of our measurements. We use several devices to measure different aspects of a component:
White-light interferometers. Using white-light interferometers we are able to create a digital topography of the surface of an optical device without ever coming in contact with it.
Profilometers. Profilometers measure by contacting the surface of the component a stylus and measuring up and down movement. The results indicate the surface roughness of a surface of the component. Measurements are taken from a touch probe and are comprised of X, Y, and Z axes.
Coordinate Measuring Machines. These devices, also known as CMMs, evaluate geometrical characteristics of the component being evaluated.
The measurements from these devices are analyzed, either by the device itself and/or by one of our engineers, for inconsistencies or imperfections. The results are traceable and detailed.
From design to prototype, fabrication to testing, Greenlight provides superior service and expertise. When tight tolerances and flawless function are required, Greenlight Optics never fails.
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