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Effect of a gap in crossed linear motion transducers with coarse grating lattices

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Abstract

An equation for the distribution of light intensity in the image plane of an optical system with a gap between coarse grating lattices has been derived by modeling the process of radiant flux conversion in crossed gratings. The effect of the gap on the contrast of combination bands is investigated and expressions for maximum admissible gaps between gratings are derived from which the required precision of the mechanical section of the transducer can be found.

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Authors
  1. N. T. Polyarus
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Additional information

Translated from Izmeritel'naya Tekhnika, No. 4, pp. 18–21, April, 1995.

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Polyarus, N.T. Effect of a gap in crossed linear motion transducers with coarse grating lattices. Meas Tech 38, 389–394 (1995). https://doi.org/10.1007/BF00976430

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  • DOI: https://doi.org/10.1007/BF00976430

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