Digital goniometer with a two-dimensional scale

Bokhman, E.D., Venediktov, V.Y., Korolev, A.N., Lukin, A.Y.

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Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Бохман Е.Д., Венедиктов В.Ю., Королёв А.Н., Лукин А.Я. Цифровой измеритель угла с двумерной шкалой // Оптический журнал. 2018. Т. 85. № 5. С. 19–25. http://doi.org/10.17586/1023-5086-2018-85-05-19-25

Bokhman E.D., Venediktov V.Yu., Korolev A.N., Lukin A.Ya. Digital goniometer with a two-dimensional scale [in Russian] // Opticheskii Zhurnal. 2018. V. 85. № 5. P. 19–25. http://doi.org/10.17586/1023-5086-2018-85-05-19-25

For citation (Journal of Optical Technology):

E. D. Bokhman, V. Yu. Venediktov, A. N. Korolev, and A. Ya. Lukin, "Digital goniometer with a two-dimensional scale," Journal of Optical Technology. 85(5), 269-274 (2018). https://doi.org/10.1364/JOT.85.000269

Abstract:

This paper presents the results of experimental and modeling metrological studies on a digital goniometer, measuring angular orientations of an image of an optical mark using a digital camera array. A fully digital technology is also described for measuring angles using virtual angular-scale carriers (digital images). By using a mathematical model for the goniometer, it is shown that the error in angle measurements can be reduced to the level of thousandths of an arcsecond in principle.

Keywords:

rotation sensing, optical mark, mark angular orientation, photodetector array, mathematical model, measurement error

Acknowledgements:

V. Yu. Venediktov is grateful to the Ministry of Education and Science of the Russian Federation for funding within the framework of the state task 8.1039.2017 “Study of new principles of high-speed measurement of amplitude-phase parameters of optical beams and their application in adaptive optics problems.”

OCIS codes: 100.2000, 120.3930

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