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- W2025681098 abstract "The construction of the large size radiotelescope for the millimetre wave range requires measuring the line deformationof mirror's surface and the angle deviations of the mirror axles. Following issues dealing with this problem are describedin this article: 1) the design of the angle deformation measurement system on the base of the autocollimation method; 2)the autoreflection scheme as the new type of the optic-electronic autocollimator; 3) the design of the line deformationmeasurement system on the base of the triangular method. The great attention during the research was paid to theexperimental approval of the theoretical results. The parameters of the experimental setups are: infrared emission diodeAL107B by power 15 mWt as sources of radiation; the objective by the focal length 500 mm as aperture of receivervideo-camera, the CMOS matrix receiver by type OV05620 Color CMOS QSXGA with 2592*1944 pixels and one pixelsize (2.2*2.2) μm2 produced by OmniVision as image analyzer. The experimental error of the angle measuring system is1.6 arc. seconds at the angular region 16 arc. minutes for 22 m distance. The experimental error of the line measurementis 0.15 mm at the range 30 mm on a working distance 18 m. This result allows the practice measuring of the constructiondeformations for the new large rotateable radio telescope RT-70 Suffa." @default.
- W2025681098 created "2016-06-24" @default.
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- W2025681098 date "2011-05-23" @default.
- W2025681098 modified "2023-09-22" @default.
- W2025681098 title "Optic-electronic systems for measuring the angle deformations and line shifts of the reflecting elements at the rotateable radio-telescope" @default.
- W2025681098 doi "https://doi.org/10.1117/12.890059" @default.
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