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- Article name
- TECHNIQUE OF DEFINITION OF AN ANGULAR ERROR OF THE STAR SENSOR WITH LIQUID COOLING
- Authors
- TIMOSHENKOV S. P., , spt@miee.ru, National Research University of Electronic Technology, Moscow, Russia
Kalugin V. V., , viktor118@mail.ru, National Research University of Electronic Technology, Moscow, Russia
Razzhivalov P. N., , razzhivalovpavel@gmail.com, National Research University of Electronic Technology; Scientific and Production Enterprise "Optical-Electronic Complexes and Systems", Moscow, Russia
- Keywords
- star device / star sensor / orientation devices / heat stability / coefficient of a convective thermolysis / angular error
- Year
- 2014 Issue 3 Pages 54 - 59
- Code EDN
- Code DOI
- Abstract
- Research of the star sensor with liquid cooling for the purpose of definition of the angular error arising owing to thermal deformation of a design of the sensor is conducted. For carrying out research the mathematical model by means of a software package of Mathcad was developed for calculation of coefficient of a convective thermolysis and as the three-dimensional model of the star sensor by means of SAPR Creo Elements (ProEngineer 5.0) is developed for carrying out the thermal analysis of a design. As a result of research the technique of definition of an error of the star sensor was formulated, the optimum operating mode of two contours of liquid cooling was chosen, the size of thermal deformation of a design and an angular error between an optical axis of a lens and a photosensitive matrix is determined. The size of an error made 0.3 angular seconds.
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