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PLEASE NOTE: The Publications System provided by the Manufacturing Systems Integration Division (MSID) has moved to: http://www.mel.nist.gov/msidlibrary/publications.html. The pages below are maintained for archival purposes only.
Publication summary
Author(s): Cathleen Diaz and Ted Hopp
Publication date: July 1994
Citation: Cathleen Diaz and Ted Hopp: "Testing of Coordinate Measuring System Software," Proceedings of the 1994 NCSL Workshop & Symposium, Chicago, IL, July, 1994.
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Abstract:
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Coordinate measuring systems (CMSs) determine dimensional (length)
characteristics of mechanical parts by analyzing 3-dimensional point data
acquired on part surfaces. Data analysis software can contribute
significantly to the total measurement error of a CMS. Factors affecting
software performance includes the choice of analysis method, the quality of
software implementations, and characteristics of the specific measurement
task. There are no standard mechanisms, however, to evaluate the effects of
these factors on the quality of the measurement results.
NIST is developing a Special Test service to evaluate the performance of
gaussian curve-and-surface-fitting algorithms that are at the core of most
CMS software. This service is being defined in coordination with an ASME
standards committee developing a new national standard, Performance
Evaluation of Coordinate Measuring Systems Software. The NIST service will
be based on this emerging standard, an Algorithm Testing System currently
being developed at NIST, and test procedures specific to coordinate
measurement tasks. This paper discusses the background design philosophy
and status of the new service.
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