Influence of material dispersion on the measurement accuracy of chromatic sensors

Antonin Miks; Jiri Novak; Pavel Novak; Pavel Kajnar

doi:10.1117/12.827279

17 June 2009 Influence of material dispersion on the measurement accuracy of chromatic sensors

Antonin Miks; Jiri Novak; Pavel Novak; Pavel Kajnar

Author Affiliations +

Proceedings Volume 7389, Optical Measurement Systems for Industrial Inspection VI; 73892K (2009) https://doi.org/10.1117/12.827279
Event: SPIE Europe Optical Metrology, 2009, Munich, Germany

Abstract

The work deals with the problem of non-contact measurement of the surface topography using chromatic (confocal) sensor. A detailed analysis of the influence of the refractive index of the plan-parallel plate material on the accuracy of measurement using chromatic sensor is performed. Relations which describe this phenomenon and enable to calculate an error due to material dispersion are derived. It can be seen from the performed analysis that the dispersion of plan parallel plate material causes measurement error that cannot by neglected for precise measurements.

Citation Download Citation

Antonin Miks, Antonin Miks, Jiri Novak, Jiri Novak, Pavel Novak, Pavel Novak, Pavel Kajnar, Pavel Kajnar, } "Influence of material dispersion on the measurement accuracy of chromatic sensors", Proc. SPIE 7389, Optical Measurement Systems for Industrial Inspection VI, 73892K (17 June 2009); doi: 10.1117/12.827279; https://doi.org/10.1117/12.827279

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