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Author: steven phillips

Displaying records 21 to 30 of 53 records.
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21. Recent Developments in Standards for Measurement Uncertainty and Traceability
Published: 5/1/2003
Author: Steven David Phillips
Abstract: This paper examines recent and future work of the B89.7 and ISO 14253 series of standards. Other recent online information on measurement uncertainty and traceability is also provided.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821747

22. The Validation of CMM Task Specific Measurement Uncertainty Software
Published: 1/1/2003
Authors: Steven David Phillips, Bruce R. Borchardt, A Abackerli, Craig M Shakarji, Daniel S Sawyer, P Murray, B Rasnick, K Summerhays, J M Baldwin, M P Henke
Abstract: Task specific CMM measurement uncertainty statements can be generated using computer (Monte Carlo) simulation. Recently, commercial products using this powerful technique have become available; however they typically involve megabytes of code inacces ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822036

23. A Laser Tracker Calibration System
Published: 1/1/2002
Authors: Daniel S Sawyer, Bruce R. Borchardt, Steven David Phillips, Charles Fronczek, William Tyler Estler
Abstract: We describe a laser tracker calibration system developed for frameless coordinate metrology systems. The system employs a laser rail to provide an 'in situ' calibrated length standard that is used to test a tracker in several different configurations ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821749

24. Some Developments at NIST on Traceability in Dimensional Measurements
Published: 10/1/2001
Authors: Dennis A Swyt, Steven David Phillips, J Palmateer
Abstract: This paper reports to the international community on recent developments in technical ;policies, programs, and capabilities at the U.S. National Institute of Standards and Technology (NIST) related to traceability in dimensional measurements. These d ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821616

25. A Careful Consideration of the Calibration Concept
Series: Journal of Research (NIST JRES)
Published: 3/1/2001
Authors: Steven David Phillips, William Tyler Estler, Theodore D Doiron, K Eberhardt, M Levenson
Abstract: This paper is a detailed discussion of the technical aspects of the calibration process with emphasis on the definition of the measurand, the conditions under which the calibration results are valid, and the subsequent use of the calibration results ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823126

26. A Careful Consideration of the Calibration Concept
Published: 1/1/2001
Authors: Steven David Phillips, William Tyler Estler, Theodore D Doiron, K Eberhardt, M. Levenson
Abstract: This paper is a detailed discussion of the technical aspects of the calibration process with emphasis on the definition of the measurand, the conditions under which the calibration results are valid, and the subsequent use of the calibration results ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824612

27. A Novel Artifact for Testing Large Coordinate Measuring Machines
Published: 1/1/2001
Authors: Steven David Phillips, Daniel S Sawyer, Bruce R. Borchardt, D E Ward, D E Beutel
Abstract: We present a high accuracy artifact useful for the evaluation of large CMMs. This artifact can be physically probed by the CMM in contrast to conventional techniques that use purely optical methods such as laser interferometers. The system can be use ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824606

28. Design and Testing of a One Dimensional Measuring Machine for Determining the Length of Ball Bars
Published: 1/1/2001
Authors: J C Ziegert, D Rea, Steven David Phillips, Bruce R. Borchardt
Abstract: A new machine for the rapid calibration of ball bars has been built.  By means of comparisons to CMM measurements, it has been shown to work as an accurate special purpose machine for the calibration of ball bar lengths.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823144

29. Precision Measurements in the New Millennium: Predictions, Opportunity and Progress
Published: 1/1/2001
Author: Steven David Phillips
Abstract: As the theme of this year''s International Dimensional Metrology Workshop is Dimensional Metrology - Precision Measurements in the New Millennium, it is interesting to consider the pervasiveness of dimensional metrology in our industrial soci ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821589

30. Traceability Calibration, & Measurement Uncertainty Issues Regarding Coordinate Measuring Machines and Other Complex Instruments
Published: 6/1/2000
Author: Steven David Phillips
Abstract: The modern definition of traceability intimately links the concepts of calibration (i.e., connection to the SI unit) and measurement uncertainty. In a typical coordinate measuring machine (CMM) measurement problem the measurement under consideration ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820969