Control of the deformation for the millimeter wave range radiotelescope mirrors

Konyakhin, Igor A.; Artemenko, Yury; Тимофеев, А. Н.

doi:10.1117/12.808154

Cited by 5 publications

(2 citation statements)

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“…The research in the millimeter wave range requires the few (no more 2 arc. seconds) deviation the direction of the parabolic mirror axis relative the theoretic one 1 . The deformation of radio telescope elements at the time of installation and at the research work period makes some problems.…”

Section: Introductionmentioning

confidence: 99%

Optic-electronic sensor for measuring the deformations of the axle at the radio-telescope

Konyakhin

Turgalieva

2014

SPIE Proceedings

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The improved autocollimation sensors for measuring angular deformations of the large constructions as elevation axle and the azimuth columns of the radio telescopes are analyzed. Two new types of the reflector for autocollimation sensors are researched. The first type of the reflector is the composition of the anamorphic prism and ordinary cube-corner retroreflector. This reflector generates the narrow beam, as result the work distance and the range of measurement of the sensor increases. The second type of the reflectors is the tetrahedral reflector with flat reflecting sides and invariant axis. For this reflector the small value of the conversion coefficient is the realization of the measurements on the large work distances. The technical characteristics of the experimental setups of new reflectors are presented. The features of the anamorphic prism and tetrahedral reflector as the reflectors for autocollimation angular sensors are discussed.

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Section: Introductionmentioning

confidence: 99%

Optic-electronic sensor for measuring the deformations of the axle at the radio-telescope

Konyakhin

Turgalieva

2014

SPIE Proceedings

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“…Therefore, a new measurement system needs to be designed to achieve a real-time accurate measurement of the deformation of the main mirror of a radio telescope. Igor Konyakhin et al proposed a special measurement system for the RT-70 radio telescopes based on the triangular method [13]. This system consists of separate base units, with each containing only one objective lens and a charge-coupled device.…”

Section: Introductionmentioning

confidence: 99%

CMOS Multi-Matrix Optoelectronic System for High Speed Measurement of Main Mirror Deformation Large Diameter Radio Telescope

Qin

Konyakhin

et al. 2020

IEEE Access

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A complementary metal-oxide semiconductor (CMOS) multi-matrix-based optoelectronic system is proposed and studied to measure the deformation of each connection point of a large full-rotatable radio telescope. The system is based on 18 multi-matrix base units. Theoretical investigations demonstrate that the system can provide real-time measurement of multi-point displacements quickly (within 21 seconds). Experimental investigations reveal that the actual measurement error of the photoelectric measurement unit designed in this paper is 0.024 mm. It is inferred that the measurement displacement error will not exceed 0.05 mm in an actual measurement of the full main mirror of the large diameter radio telescope, thus confirming the feasibility of the system. INDEX TERMS Measuring deformations, millimeter-range radio telescope, multi-matrix measurement system, optoelectronic system.

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Optic-Electronic Autocollimation Sensor for Measuring Angular Shifts of the Radiotelescope Subdish

Konyakhin

Gorodetskiy

Phong

et al. 2015

Studies in Systems, Decision and Control

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Control of the deformation for the millimeter wave range radiotelescope mirrors

Cited by 5 publications

References 0 publications

Optic-electronic sensor for measuring the deformations of the axle at the radio-telescope

Optic-electronic sensor for measuring the deformations of the axle at the radio-telescope

CMOS Multi-Matrix Optoelectronic System for High Speed Measurement of Main Mirror Deformation Large Diameter Radio Telescope

Optic-Electronic Autocollimation Sensor for Measuring Angular Shifts of the Radiotelescope Subdish

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