Computer modeling of the optic-electronic system for deformation measurement of radio-telescope counter-reflector
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.
optoelectronic system rolls angle measuring triangulation
Kaliteevskiy Ilya Konyakhin Igor
Department of Optic-electronics Devices and Systems, Saint-Petersburg State University of Informatio Department of Optic-electronics Devices and Systems, Saint-Petersburg State University of Informatio
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）