Shadowgraph is an optical method that reveals non-uniformities in transparent media like air, water, or glass. It is related to, but simpler than, the schlieren and schlieren photography methods that perform a similar function. Shadowgraph is a type of flow visualisation.
LEADER PRECISION INSTRUMENTS
Leader Precision offers a series of optical comparator measuring devices. They strive to continuously offer superior reliability and durability with their products.
STARRETT
Manufactured without compromise, Starrett optical comparators provide time-tested, cost-effective solutions for non-contact measurement. With a vast selection of styles, sizes, stages, lenses, and other accessories, Starrett has a comparator for almost any application.
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