30 September 1998 Intercomparison of phase shifts in interferometric gauge block calibration
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A comparison of phase correction measurements by the stack method and by roughness measurements has been performed by the National Metrology Institutes of Sweden, Denmark, Norway and Finland. For a given technique the agreement between the participants is good, but the roughness measurements give consistently lower results for the phase correction than the stack method. This may be due to a systematic error in the stack results, originating from form errors.
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Mikael Frennberg, Mikael Frennberg, Reine Johansson, Reine Johansson, Jes Henningsen, Jes Henningsen, Steen-Ulrik Ipsen, Steen-Ulrik Ipsen, Bitten Poulsen, Bitten Poulsen, Helge Karlsson, Helge Karlsson, Heikki Lehto, Heikki Lehto, } "Intercomparison of phase shifts in interferometric gauge block calibration", Proc. SPIE 3477, Recent Developments in Optical Gauge Block Metrology, (30 September 1998); doi: 10.1117/12.323120; https://doi.org/10.1117/12.323120

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