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Proceedings Paper

Multi-matrix optic-electronic systems for measuring the line shifts of the points on the radio-telescope main mirror
Author(s): Igor Konyakhin; Minh Hoa Tong
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Paper Abstract

The mirror construction of the radiotelescope RT-70 (Suffa) for millimetre wave range requires measuring the line deformation of mirror's surface. Following issues dealing with this problem are described in this article: 1) the possibility of the design of deformation measurement system based on triangular method 2) the new scheme of optic-electronic measurement system. The great attention during the research was paid to the experimental approval of the theoretical results. The model of the described system had the following characteristics: infrared emission diode AL107B by power 15 mWt as sources of radiation; the objective by the focal length 405 mm as aperture of receiver video-camera, the CMOS matrix receiver by type OV05610 Color CMOS QSXGA with 2592*1944 pixels and one pixel size (2.8*2.8) μm2 produced OmniVision as image analyzer . The computer simulation error and the experimental error measurement was 0.05 mm at the range 30 mm on a working distance 25 m, which allows measuring the deformation of radiotelescope construction with the mirror diameter 70 m.

Paper Details

Date Published: 7 March 2019
PDF: 6 pages
Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 1105307 (7 March 2019); doi: 10.1117/12.2512113
Show Author Affiliations
Igor Konyakhin, ITMO Univ. (Russian Federation)
Minh Hoa Tong, ITMO Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 11053:
Tenth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Jie Lin, Editor(s)

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