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Author: johannes soons

Displaying records 21 to 30 of 41 records.
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21. Form-Profiling of Optics Using the Geometry Measuring Machine and NIST M-48 CMM
Published: 1/1/2006
Authors: Nadia Machkour-Deshayes, John Richard Stoup, John Lu, Johannes A Soons, Ulf Griesmann, Robert S. Polvani
Abstract: We are developing an instrument, the Geometry Measuring Machine (GEMM), to measure the profile errors of aspheric and free form optical surfaces, which require measurement uncertainties near 1nm. Using GEMM, an optical profile is reconstructed from ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822545

22. Analysis of the Step-Diagonal Test
Published: 6/1/2005
Author: Johannes A Soons
Abstract: The step-diagonal test modifies the diagonal displacement test for machine tool performance evaluation by executing a diagonal as a sequence of single-axis motions.  The proposed modification has gained interest because of the claim that the obt ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822286

23. Comparison of Measurement Procedures for Evaluating Thermal Errors of Machine Tools due to Moving Linear Axes
Published: 6/1/2005
Authors: Michael L McGlauflin, Johannes A Soons, M Alkan Donmez
Abstract: This paper investigates an alternative method to assess thermal errors due to the heat generated by moving linear axes using a spindle-mounted probe and simple artifacts.  The angular errors introduced by the warm-up of individual axes (X, Y and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821996

24. A Simple Ball Averager for Reference Sphere Calibrations
Published: 1/1/2005
Authors: Ulf Griesmann, Quandou Wang, Johannes A Soons, Remi Carakos
Abstract: When measuring the form errors of precision optics with an interferometer, the calibration of the reference wavefront is of central importance.  Ball averaging, or random ball testing, has in recent years emerged as a robust method for calibrati ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822303

25. Accessing the Performance of Model-Based Control in a Distributed Machine Tool Control Environment
Published: 10/2/2004
Authors: John L Michaloski, Johannes A Soons, Frederick M Proctor
Abstract: Although Computerized Numerical Controller (CNC) machine tools have greatlyimproved precision, quality and productivity, there are still many areaswhere inaccuracies and inef- ficiencies remain. Model-Based Control (MBC) isa technique to advance mach ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823505

26. Improving CNC Machining Accuracy Through Thermal Model-Based Control
Published: 7/21/2004
Authors: John L Michaloski, Frederick M Proctor, Johannes A Soons, R King, W Bakula, H Dominguez, N Frampton
Abstract: The United States Army has a requirement to machine munitions to strict tolerances so that the munitions will launch properly and the explosives will detonate correctly. High precision parts require machine tools to operate with a high degree of acc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824511

27. Improving CNC Machining Accuracy Through Thermal Model-Based Control
Published: 7/21/2004
Authors: John L Michaloski, Frederick M Proctor, Johannes A Soons, R King, W Bakula, H Dominguez, N Frampton
Abstract: The United States Army has a requirement to machine munitions to strict tolerances so that the munitions will launch properly and the explosives will detonate correctly. High precision parts require machine tools to operate with a high degree of accu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822495

28. Characterization of Precision Spheres With XCALIBIR
Published: 1/1/2004
Authors: Ulf Griesmann, Johannes A Soons, Quandou Wang
Abstract: The geometry of a nearly spherical surface, for example that of a precision optic, is completely determined by the radius-of-curvature at one point and the deviation from the perfect spherical form at all other points of the sphere. Measurements of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822216

29. Measuring Form and Radius of Spheres With Interferometry
Published: 1/1/2004
Authors: Quandou Wang, Johannes A Soons, Ulf Griesmann
Abstract: The geometry of a nearly spherical surface, for example that of a precision optic, is completely determined by the radius of curvature at one point and deviation from the perfect spherical form at all other points of the sphere. Measurements of radi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822167

30. Smart Machining Research at the National Institute of Standards and Technology
Published: 9/23/2003
Authors: Kevin K Jurrens, Johannes A Soons, Robert W Ivester
Abstract: This paper presents an overview of collaborative research activities conducted by staff of the Manufacturing Engineering Laboratory at the National Institute of Standards and Technology to address the enabling metrology and standards infrastructure n ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822098



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  • SP 250-XX: Calibration Services
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