Abstract
A scale bar approximately 2.3 m in length is specified in the ISO and ASME laser tracker standards as necessary test equipment to evaluate the measuring performance of laser trackers. A 2.3-m length is chosen as the approximate length that will sufficiently expose measurement error sources in LTSs, for a scale bar placed at the specified distances from the tracker during testing. A NIST report describing interim testing of LTSs, published in 2014, specifies tests using both a 2.3-m and a 1.15-m length scale bar. This presentation will describe testing of LTSs using a single 1.15-m scale bar. The proposed tests are designed to be sensitive to all the geometric error sources in the LTS. The proposed testing procedure and experimental results will be presented
Cite this paper
Vincent Lee, Daniel Sawyer. National Institute of Standards and Technology (NIST), Gaithersburg, MD. Presented at the Coordinate Metrology Systems Conference 2019, Orlando, Florida, July 22-26, 2019. Coordinate Metrology Society, reference CMS-2019-017.