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Part of the Fundamentals of Manufacturing Processes Video Series, this program begins with an introduction to the core concepts regarding measurement. These concepts include precision, resolution, accuracy, repeatability, and reproducibility. Standards are addressed featuring sections on gage blocks and surface plates.
The program focuses on the array of measurement and gaging tools, arranging them into three categories: non-graduated measurement and gaging tools, graduated measurement and gaging tools, and advanced measurement and gaging tools.
The non-graduated measurement and gaging tools section features tools and gages that are used to transfer measurements to or from graduated measurement tools, or as pass/fail comparisons to standards. These tools include dividers, calipers, squares, straightedges, adjustable parallels, and go-no-go gages.
The graduated measurement and gaging tools section highlights the use of tools, such as vernier calipers, micrometers, and tools using dial indicators and electronic digital readouts. It also features rules and combination squares.
The advanced measurement and gaging tools section focuses on optical measurement projectors, vision systems and coordinate measurement machines, or CMMs.
By Gary Conner
By George N Bullen FSME