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Author: Bruce Borchardt

Displaying records 1 to 10 of 30 records.
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1. The NIST 66 m Ball Range A One Dimensional Artifact to test Three Dimensional Imaging Systems
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7725
Published: 11/3/2010
Authors: Bruce R. Borchardt, Craig M Shakarji
Abstract: NIST (the National Institute of Standards and Technology) has instituted a 66 m long range for testing of distance-measuring systems. The range consists of titanium balls mounted along a line on stands at unequal intervals. This paper describes thi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906846

2. Estimating Volumes of Near-spherical Molded Artifacts
Series: Journal of Research (NIST JRES)
Published: 5/3/2010
Authors: David E. Gilsinn, Bruce R. Borchardt, Amelia Tebbe
Abstract: The Food and Drug Administration (FDA) is conducting research on developing reference lung cancer cancer lesions, called phantoms, to test computed tomography (CT) scanners and their software. FDA loaned two semi-spherical phantoms to the National In ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904645

3. Volume Estimation of Molded Artifacts by B-Splines
Published: 10/9/2009
Authors: David E. Gilsinn, Bruce R. Borchardt, Amelia Tebbe
Abstract: The volumes of two industrially molded non-metallic artifacts were estimated using surface data obtained by a coordinate measuring machine. A tensor product of B-splines was used to model the probed data points on the surface and the Divergence Theor ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903601

4. Estimating Volumes of Simulated Lung Cancer Nodules
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7571
Published: 7/15/2009
Authors: David E. Gilsinn, Bruce R. Borchardt, Amelia Tebbe
Abstract: Lung cancer is a disease of uncontrolled cell growth in tissues of the lung. Computed tomography (CT) shows promise in detecting lung cancers at earlier, more operable stages, when survival is better. CT scans generate multiple 2-D slice images of th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901958

5. ASME B89.4.19 Performance Evaluation Tests and Geometric Misalignments in Laser Trackers
Published: 1/30/2009
Authors: Balasubramanian Muralikrishnan, Daniel S Sawyer, Christopher J Blackburn, Steven David Phillips, Bruce R. Borchardt, William Tyler Estler
Abstract: Small and unintended offsets, tilts, and eccentricity of the mechanical and optical components in laser trackers introduce systematic errors in the measured spherical coordinates (angles and range readings), and possibly in the calculated lengths of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824664

6. 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

7. 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

8. 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

9. 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

10. 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



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