The use of two-dimensional scales for measuring angle and linear displacement

A. N. Korolev; A. Ya. Lukin; Yu. V. Filatov; V. Yu. Venediktov

doi:10.1117/12.2635920

7 December 2022 The use of two-dimensional scales for measuring angle and linear displacement

A. N. Korolev, A. Ya. Lukin, Yu. V. Filatov, V. Yu. Venediktov

Proceedings Volume 12274, Emerging Imaging and Sensing Technologies for Security and Defence VII; 1227410 (2022) https://doi.org/10.1117/12.2635920
Event: SPIE Security + Defence, 2022, Berlin, Germany

Abstract

Recently the authors proposed a new angle measurement technology based on the use of the two-dimensional scales. The rotation angle measurement is based on measuring the rotation of the pattern image on the sensor of a digital camera. The report presents the results of generalization of the developed earlier technology of angular measurements using a two-dimensional scale to measurements of linear displacements. It is shown that using a simple optical-digital system with a physical resolution, for example, of the order of several micrometers, it is possible to measure angles with an error of one thousandth of an arc second and linear displacements with an error of a fraction of a nanometer.

Conference Presentation

Citation Download Citation

A. N. Korolev, A. Ya. Lukin, Yu. V. Filatov, and V. Yu. Venediktov "The use of two-dimensional scales for measuring angle and linear displacement", Proc. SPIE 12274, Emerging Imaging and Sensing Technologies for Security and Defence VII, 1227410 (7 December 2022); https://doi.org/10.1117/12.2635920

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