Computer modeling of the optic-electronic system for deformation measurement of radio-telescope counter-reflector

Ilya Kaliteevskiy; Igor Konyakhin

doi:10.1117/12.807666

12 January 2009 Computer modeling of the optic-electronic system for deformation measurement of radio-telescope counter-reflector

Ilya Kaliteevskiy, Igor Konyakhin

Author Affiliations +

Proceedings Volume 7133, Fifth International Symposium on Instrumentation Science and Technology; 71333X (2009) https://doi.org/10.1117/12.807666
Event: International Symposium on Instrumentation Science and Technology, 2008, Shenyang, China

Abstract

The metrological support of many measurement tasks requires measuring spatial position of some objects in respect to rigid base. The microwave radio-telescope development requires high-precision control of the position of the counterreflector. The construction elements weight and thermal deformation leads to changes of position and linear shift of each planar section in respect to ideal parabolic shape. In this case it is necessary to implement control system for measuring these deformations of the reflector. For determination of the actual shape of the reflector control objects (light-emitting diodes, LED) placed on the reflector, and their coordinates in respect to motionless construction element (base ring placed on the top main mirror) are measured by triangulation method using CCD camera, which determines vision angles of LEDs. Analysis of relations of primary errors of measurements and errors of determinations of actual coordinates of the reflectors confirm feasibility of the whole system of control of the shape of counter-reflector.

Citation Download Citation

Ilya Kaliteevskiy and Igor Konyakhin "Computer modeling of the optic-electronic system for deformation measurement of radio-telescope counter-reflector", Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 71333X (12 January 2009); https://doi.org/10.1117/12.807666

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