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Publication Citation: Performance Evaluation of Laser Trackers

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Author(s): Balasubramanian Muralikrishnan; Daniel S. Sawyer; Christopher J. Blackburn; Steven D. Phillips; Bruce R. Borchardt; William T. Estler;
Title: Performance Evaluation of Laser Trackers
Published: September 15, 2008
Abstract: The American Society for Mechanical Engineers (ASME) recently released the ASME B89.4.19 Standard [1] on performance evaluation of spherical coordinate instruments such as laser trackers. At the National Institute of Standards and Technology (NIST), we can perform the complete set of tests described in the Standard, and have done so for a variety of laser trackers. We outline the tests described in the Standard, discuss our capabilities at the large-scale coordinate metrology group, and present results from B89.4.19 tests conducted on a few trackers. We also outline an analysis approach that may be used to evaluate the sensitivity of any measurement, including the tests described in the B89.4.19 Standard, to different geometric misalignments in trackers. We discuss how this approach may be useful in determining optimal placement of reference lengths to be most sensitive to different geometric misalignments.
Conference: Performance Metrics for Intelligent Systems Workshop, PerMIS'08
Pages: 7 pp.
Location: Gaithersburg, MD
Dates: August 19-21, 2008
Keywords: ASME B89.4.19; large-scale metrology; laser tracker; performance evaluation; sensitivity analysis;
Research Areas: Metrology, Length, Manufacturing
PDF version: PDF Document Click here to retrieve PDF version of paper (224KB)