Round-robin measurements of toroidal window

Kate Medicus; Scott DeFisher; Marcin Bauza; Paul Dumas

doi:10.1117/12.2030342

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15 October 2013 Round-robin measurements of toroidal window

Kate Medicus, Scott DeFisher, Marcin Bauza, Paul Dumas

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Proceedings Volume 8884, Optifab 2013; 88840Y (2013) https://doi.org/10.1117/12.2030342
Event: SPIE Optifab, 2013, Rochester, New York, United States

Abstract

We have performed a round-robin study of surface irregularity measurements of a free-form toroidal window. The measurement tools were a Leitz scanning CMM at Optimax Systems, Inc., an UltraSurf, a non-contact measuring system at OptiPro Systems, a Zeiss scanning CMM at OptiPro Systems, a F25 micro-CMM at Carl Zeiss Industrial Metrology, and an ASI(Q)™ at QED Technologies. Each instrument resulted in a 2.5D surface error map. The measurements were compared with multiple analysis settings. The different analysis settings removed some low frequency height errors, which varied amongst the measurements. This highlights the need for more study to determine the reasons for the differences in the low frequency errors. With the low frequency errors removed, the measurements compared very well, to within 0.2 μm rms.

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Kate Medicus, Scott DeFisher, Marcin Bauza, and Paul Dumas "Round-robin measurements of toroidal window", Proc. SPIE 8884, Optifab 2013, 88840Y (15 October 2013); https://doi.org/10.1117/12.2030342

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