July, 2020
Are you looking to learn optical comparator basics, including capabilities, advantages, best practices and next-generation functions? Our free metrology resource site offers fundamental knowledge related to dimensional measurement instruments, environment requirements, selecting the right tool for the job, and various inspection processes.
What is an optical comparator? Also referred to as a profile projector or shadowgraph. An optical comparator is an inspection tool that applies the principles of optics to the inspection of manufactured parts. The magnified silhouette of a part is projected upon the screen, and the dimensions and geometry of the part are measured against design tolerances.
Optical comparators allow for two-dimensional inspection of parts. Measurements include lengths, angles, diameters, and provides the data for GD&T measurements. Optical comparators have the advantage of being a non-contact inspection system that doesn't skew measurement of flexible parts or damage sensitive parts.
Learn about the core technology that drives these tools, and the next-generation optical comparators using the principals of these tools in new ways to bring added-value to production and quality inspection.
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