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The NIST 66 m Ball Range A One Dimensional Artifact to test Three Dimensional Imaging Systems



Bruce R. Borchardt, Craig M. Shakarji


NIST (the National Institute of Standards and Technology) has instituted a 66 m long range for testing of distance-measuring systems. The range consists of titanium balls mounted along a line on stands at unequal intervals. This paper describes this range, including the uncertainty of the calibrated ball positions. The range has been shown to be stable and repeatable at the 20 m level, and if calibrated from day to day is capable of being used as a workable test range. The overall array of kinematic nests holding titanium balls can be used as a facility for performing range tests of three-dimensional (3D) imaging systems at the level of about 1 x 10-6 (k = 2 relative uncertainty). Continued monitoring of the positions has shown some interesting instabilities which do not interfere with using the range for its intended purpose.
NIST Interagency/Internal Report (NISTIR) - 7725
Report Number


Large Scale Metrology, 3D scanning, Length metrology


Borchardt, B. and Shakarji, C. (2010), The NIST 66 m Ball Range A One Dimensional Artifact to test Three Dimensional Imaging Systems, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed April 13, 2024)
Created November 3, 2010, Updated November 10, 2018