Interferometric straightness measurement system using a holographic grating

Makoto Yamauchi; Kiyofumi Matsuda

doi:10.1117/12.163198

1 April 1994 Interferometric straightness measurement system using a holographic grating

Makoto Yamauchi, Kiyofumi Matsuda

Author Affiliations +

Optical Engineering, Vol. 33, Issue 4, (April 1994). https://doi.org/10.1117/12.163198

Abstract

A new method for measuring the straightness of travel of a moving table is described. The method uses two conjugate beams diffracted from a holographic grating that is mounted on the moving table. The intensity of two-beam interference is measured and the transverse displacement of the table is calculated from the change in intensity. The system is theoretically capable of measuring the transverse displacement to nanometer-order accuracy. Experimentally, a transverse displacement measurement with an accuracy of 0.12 μm was obtained over a staged travel of 100 mm.

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Makoto Yamauchi and Kiyofumi Matsuda "Interferometric straightness measurement system using a holographic grating," Optical Engineering 33(4), (1 April 1994). https://doi.org/10.1117/12.163198

Published: 1 April 1994

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