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Determining the error in measuring the spherical concave mirror radius of curvature with a laser rangefinder
A.A. Sakharov 1, I.V. Zhivotovsky 1, V.E. Karasik 1, A.A. Patrikeeva 1

1 Bauman Moscow State Technical University,
105005, Moscow, Russia, 2nd Baumanskaya st., 5, building 1

 PDF, 1504 kB

DOI: 10.18287/2412-6179-CO-1197

Pages: 246-250.

Full text of article: Russian language.

Abstract:
An instrument and technique for assessing errors of measuring optical surface radius of curvature with a laser rangefinder are presented. Errors of optical instrument alignment with a wave-front sensor are shown to influence the accuracy of measuring the mirror radius. Errors of the rangefinder-aided technique for measuring the surface radius are estimated. A computer analysis shows that the developed scheme of misalignment measurement allows a relative error of 0.02 – 0.3 % to be attained for mirrors ranging in radius from 1 m to 10 m. The choice of the accuracy characteristics of the rangefinders used for measuring the optical surface radius of curvature is justified.

Keywords:
measurement error, spherical mirror, Schack-Hartmann sensor, wavefront sensor, radius of curvature, laser rangefinder, range measurement, misalignment calculation.

Citation:
Sakharov AA, Zhivotovsky IV, Karasik VE, Patrikeeva AA. Determining the error in measuring the spherical concave mirror radius of curvature with a laser rangefinder. Computer Optics 2023; 47(2): 246-250. DOI: 10.18287/2412-6179-CO-1197.

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