Control of the deformation for the millimeter wave range radiotelescope mirrors
The mirror construction of the radiotelescope for millimetre wave range requires to measure the line deformation of mirrors surface. Now the control system is based on the trilateration method and it uses three laser distance-meters. This type of the measuring system cant be used for new radio-telescope RT-70 (Suffa). 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) m2 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, that allows to measure the deformation of radiotelescope construction with the mirror diameter 70 m.
optic-electronics measuring system triangular method matriz photo-receiver radiotelescope
Konyakhin Igor Artemenko Yury Timofeev Aleksandr
Dept. of Optic-electronics Devices and Systems, Saint-Petersburg State University of InformationTech Lebedev Physical Institute of Russian Academy of Sciences, Astro Space Center, 84/32Profsoyuznaya st Dept. of Optic-electronics Devices and Systems, Saint-Petersburg State University of Information Tec
国际会议
第五届仪器科学与技术国际学术会议(ISIST 2008)Fifth International Symposium on Instrmentation Science and Technology
沈阳
英文
1-6
2008-09-15（万方平台首次上网日期，不代表论文的发表时间）