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Title: Volumetric Accuracy Determination Using Non-Traditional Devices
Author: Benjamin R. Taylor
Source: 1987 Measurement Science Conference
Year Published: 1987
Abstract: Since the first 3-D Coordinate Measurement Machine was developed over twenty years ago, various devices and techniques have been used to determine their volumetric measuring accuracy. Early machines used calibrated length standards TV determine their linear measuring accuracy. Indicating devices located on the measuring arm, were nulled against each end of the len&h standard and the measured value was compared against the calibrated value. This, of course, was very time consuming and required a high degree of stability in the artifacts used so that their known length would be maintained. Also, this did not uncover many of the 3D errors such as axis squareness, straightness, or roll.

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