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Author: daniel sawyer

Displaying records 11 to 20 of 30 records.
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11. Calibration of a Computer Assisted Orthopedic Hip Surgery Phantom
Published: 11/4/2008
Authors: Daniel S Sawyer, Nicholas G Dagalakis, Craig M Shakarji, Yong Sik Kim
Abstract: Orthopedic surgeons have identified a need for calibration artifacts (phantoms) to establish the traceability (to the SI unit of length) of measurements performed with Computer Assisted Orthopedic Surgery (CAOS) systems. These phantoms must be light ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824707

12. Performance Evaluation of Laser Trackers
Published: 9/15/2008
Authors: Balasubramanian Muralikrishnan, Daniel S Sawyer, Christopher J Blackburn, Steven David Phillips, Bruce R. Borchardt, William Tyler Estler
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), ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824702

13. Development of Tools for Measuring the Performance of Computer Assisted Orthopaedic Hip Surgery Systems
Published: 12/28/2007
Authors: Nicholas G Dagalakis, Yong Sik Kim, Daniel S Sawyer, Craig M Shakarji
Abstract: In the late seventies a sensor was invented, which could track the movement of athlete body parts.  In the early eighties an improved version of this sensor was introduced, by a group of NIST researchers, for the calibration and the performance ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823612

14. NIST Medical Phantom Device to Assist With the Calibration and Performance Testing of CAOS Systems
Published: 11/9/2007
Authors: Nicholas G Dagalakis, James B Stiehl, Yong Sik Kim, Daniel S Sawyer, Craig M Shakarji
Abstract: According to expert othopaedic surgeons there is need for medical phantom devices with dimensional metrology traceable to national standards metrology organizations in order to confirm basic Computer Assisted Orthopaedic Surgery (CAOS) systems perfor ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823625

15. Design and Fabrication of an Operating Room Computer Assisted Orthopaedic Hip Surgery Artifact
Published: 8/17/2007
Authors: Nicholas G Dagalakis, Yong Sik Kim, Daniel S Sawyer, Craig M Shakarji
Abstract: Hundreds of thousands of joint arthroplasty operations are performed throughout the world every year providing life saving relief from pain and return of mobility to the majority of the individuals who have this treatment. Clinical studies have show ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823614

16. Laser Tracker Testing at NIST Using the ASME B89.4.19 Standard
Published: 1/1/2007
Authors: Balasubramanian Muralikrishnan, Christopher J Blackburn, Daniel S Sawyer, Bruce R. Borchardt, William Tyler Estler, Steven David Phillips
Abstract: While the versatility and economics of laser trackers are quite appealing, the ability to assess their accuracy and to compare various brands has been limited by a lack of a national or international standard that encompasses testing and traceability ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824608

17. Large-Scale Metrology Instrument Performance Evaluations at NIST
Published: 1/1/2006
Authors: William Tyler Estler, Daniel S Sawyer, Bruce R. Borchardt, Steven David Phillips
Abstract: The ASME B89 Committee on Dimensional Metrology has approved a new American National Standard B89.4.19 - Performance Evaluation of Laser Based Spherical Coordinate Measurement Systems. This Standard, to be published in 2006, specifies test methods fo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824607

18. Recent Developments in the Standardization and Testing of Laser Trackers
Published: 1/1/2006
Authors: Daniel S Sawyer, Steven David Phillips, Bruce R. Borchardt, William Tyler Estler
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823203

19. Validation of CMM Task Specific Measurement Uncertainity Software
Published: 8/1/2003
Authors: M P Henke, J M Baldwin, K Summerhays, B Rasnick, P Murray, Daniel S Sawyer, Bruce R. Borchardt, Steven David Phillips, Craig M Shakarji
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=822066

20. 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



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  • SP 250-XX: Calibration Services
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  • SP 300-XX: Precision Measurement and Calibration
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