Digital Control System of Precision Electromechanical Scanner with Elasticity
نویسنده
چکیده
The synthesis of controller algorithm for reversible electromechanical scanner of the telescope scanning axis is discussed. Digital control system is built without intermediate stage of synthesis of analog control law. The modified procedure for the synthesis of discrete optimal control law is introduced. Elasticity influence on static and dynamic characteristics of electromechanical scanner of the telescope scanning axis is discussed. It is shown, that the controller algorithm, which provides specified scanner behavior, could be synthesized in spite of elasticity of mechanical part of scanner. The article provides an overview of modern optical position sensors, which are used in precision drive. The results obtained are recommended for use in high-precision electric drives of precision observations complexes. The article may be helpful for developers of precision electric drives of telescopes and electromechanical scanners. Key-words: electromechanical scanner, elasticity, discrete control law, precision electric drive.
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