Technical Papers & Journals

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A Best-Fit Method to Maximize Conformance to Tolerance in Surface Coordinate Metrology Volume 7, Issue 1 Ahmad Barari This article discusses that the deviation zone of a profile cannot be computed only by using the Euclidian distances of the discrete measured points from substitute geometry and without considering the desired tolerance zone of the profile. The importance... Citation: Ahmad Barari, "A Best-Fit Method to Maximize Conformance to Tolerance in Surface Coordinate Metrology," The Journal of the CMSC, Vol. 7, No. 1, Spring 2012
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Spring 2012 Entire Issue Volume 7, Issue 1 John K. Villanueva, Xiaoyin Zhu, Chang Jin Oh, Matthew J. Novak, James H. Burge, Russell M. Kurtz, Ryder Nesbitt, Ahmad Barari, William G. Jansma National Ignition Facility: Drive Diagnostic Kinematic Mount Assembly Plate System Characterization, Alignment, and Installation, Structural Inspection of an Astronomical Wide Field Corrector with a Portable Coordinate Measuring Machine, Enhanced Surface Metrology, A Best-Fit Method to Maximize Conformance to Tolerance in Surface Coordinate Metrology, An Improvised Two-Dimensional Laser Surface Scanner for Diagnosis of RF Thermionic Electron Gun Problems Citation: The Journal of the CMSC, Vol. 7, No. 1, Spring 2012
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National Ignition Facility: Drive Diagnostic Kinematic Mount Assembly Plate System Characterization, Alignment, and Installation Volume 7, Issue 1 John K. Villanueva The National Ignition Facility (NIF), a program of the U.S. Department of Energy's National Nuclear Security Administration (NNSA), focused the intense energy of 192 giant laser beams on a BB-sized target filled with hydrogen fuel, fusing the hydrogen... Citation: John K. Villanueva, "National Ignition Facility: Drive Diagnostic Kinematic Mount Assembly Plate System Characterization, Alignment, and Installation," The Journal of the CMSC, Vol. 7, No. 1, Spring 2012
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Structural Inspection of an Astronomical Wide Field Corrector with a Portable Coordinate Measuring Machine Volume 7, Issue 1 Xiaoyin Zhu, Chang Jin Oh, Matthew J. Novak, James H. Burge Accurate assembly characterization is critical to the proper assembly and alignment of optical systems, such as the Hobby-Eberly Telescope wide field corrector (WFC). The WFC is comprised of four mirrors built into a steel structural housing, with a... Citation: Xiaoyin Zhu, Chang Jin Oh, Matthew J. Novak, James H. Burge, "Structural Inspection of an Astronomical Wide Field Corrector with a Portable Coordinate Measuring Machine," The Journal of the CMSC, Vol. 7, No. 1, Spring 2012
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Enhanced Surface Metrology Volume 7, Issue 1 Russell M. Kurtz, Ryder Nesbitt The constant search for more accurate measurement generally leads to higher cost, greater complexity, and/or devices that do not lend themselves to manufacturing environments. For example, surface metrology can be accomplished by a number of methods,... Citation: Russell M. Kurtz, Ryder Nesbitt, "Enhanced Surface Metrology," The Journal of the CMSC, Vol. 7, No. 1, Spring 2012
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An Improvised Two-Dimensional Laser Surface Scanner for Diagnosis of RF Thermionic Electron Gun Problems Volume 7, Issue 1 William G. Jansma The U.S. Department of Energy’s Advanced Photon Source (APS) at Argonne National Laboratory is a particle accelerator that produces brilliant X-rays for scientific research. To produce X-rays, electrons are accelerated and circulated in a ring 1,104... Citation: William G. Jansma, "An Improvised Two-Dimensional Laser Surface Scanner for Diagnosis of RF Thermionic Electron Gun Problems," The Journal of the CMSC, Vol. 7, No. 1, Spring 2012
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Mathematical Corrections Applied to Laser Radar Measurements Made Through a Cryogenic Vacuum Chamber Window Volume 6, Issue 2 Joseph Hayden, Bente Eegholm, David Kubalak, Theodore Hadjimichael, Raymond Ohl, Randal Telfer Laser radar (LR) measurements were made through a vacuum chamber window for cryogenic metrology of targets attached to two different alignment fixtures used for the James Webb Space Telescope. The range and pointing errors imparted on the LR beam,... Citation: Joseph Hayden, Bente Eegholm, David Kubalak, Theodore Hadjimichael, Raymond Ohl, Randal Telfer, "Mathematical Corrections Applied to Laser Radar Measurements Made Through a Cryogenic Vacuum Chamber Window," The Journal of the CMSC, Vol. 6, No. 2, Autumn 2
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Reducing Engineering Time for Compensation of Large CNC Machines Volume 6, Issue 2 Rob Flynn Machine compensation challenges increase with machine size. Increased production of large CNC machines led to the pursuit of improved methods for machine compensation. These methods included the use of volumetric compensation, implementation of a custom... Citation: Rob Flynn, "Reducing Engineering Time for Compensation of Large CNC Machines," The Journal of the CMSC, Vol. 6, No. 2, Autumn 2011
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Intelligent Measurement Processes in 3D Optical Metrology: Producing More Accurate Point Clouds Volume 6, Issue 2 Charles Mony, Daniel Brown, Patrick Hebert This article introduces the new paradigm of intelligent measurement processes in the context of 3D optical metrology. Because new 3D sensor technologies can capture 3D points at very high rates on the surface of objects, it is now possible to quickly... Citation: Charles Mony, Daniel Brown, Patrick Hebert, "Intelligent Measurement Processes in 3D Optical Metrology: Producing More Accurate Point Clouds," The Journal of the CMSC, Vol. 6, No. 2, Autumn 2011
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Reduction of Plastic Injection Tool Tuning Iterations Using Scanning Technology Volume 6, Issue 2 Jeremy Comment Mann+Hummel (M+H) has implemented scanning and freeform surface analysis to reduce tool tuning iterations for typical under-hood automotive plastic injection molded components. These would commonly include products like windshield washer bottles, coolant... Citation: Jeremy Comment, "Reduction of Plastic Injection Tool Tuning Iterations Using Scanning Technology," The Journal of the CMSC, Vol. 6, No. 2, Autumn 2011
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