NASA NTRS · 19890000381
Circularity-Measuring System
Abstract
Shape gauge and associated computer constitute system measuring deviations of large cylinders from roundness. Shaped and held somewhat like crossbow, measures relative locations of three points on surface of large, round object. By making connected series of measurements around periphery technician using gauge determines deviation of object from perfect circularity. Used to measure straightness, roundness, or complicated shapes of such large geometrical objects as surfaces of aircraft and hulls of ships.
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WHIPPO. WALTER B., Rohrkaste, G. R., Miller, John E.. 1989-07-01. Circularity-Measuring System. https://ntrs.nasa.gov/citations/19890000381
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