Position Measurement of the Direct Drive Motor of Large Aperture Telescope
Identifieur interne : 000A84 ( Main/Exploration ); précédent : 000A83; suivant : 000A85Position Measurement of the Direct Drive Motor of Large Aperture Telescope
Auteurs : LI YING [République populaire de Chine] ; WANG DAXING [République populaire de Chine]Source :
- Proceedings of SPIE, the International Society for Optical Engineering [ 0277-786X ] ; 2010.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Astronomie.
English descriptors
- KwdEn :
Abstract
Along with the development of space and astronomy science, production of large aperture telescope and super large aperture telescope will definitely become the trend. It's one of methods to solve precise drive of large aperture telescope using direct drive technology unified designed of electricity and magnetism structure. A direct drive precise rotary table with diameter of 2.5 meters researched and produced by us is a typical mechanical & electrical integration design. This paper mainly introduces position measurement control system of direct drive motor. In design of this motor, position measurement control system requires having high resolution, and precisely aligning the position of rotor shaft and making measurement, meanwhile transferring position information to position reversing information corresponding to needed motor pole number. This system has chosen high precision metal band coder and absolute type coder, processing information of coders, and has sent 32-bit RISC CPU making software processing, and gained high resolution composite coder. The paper gives relevant laboratory test results at the end, indicating the position measurement can apply to large aperture telescope control system. This project is subsidized by Chinese National Natural Science Funds (10833004).
Affiliations:
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100049</s2><s3>CHN</s3><sZ>1 aut.</sZ></inist:fA14><country>République populaire de Chine</country><placeName><settlement type="city">Pékin</settlement></placeName></affiliation></author><author><name sortKey="Wang Daxing" sort="Wang Daxing" uniqKey="Wang Daxing" last="Wang Daxing">WANG DAXING</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>National Astronomical Observatories / Nanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences</s1><s2>Nanjing 210042</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Nanjing 210042</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Key Laboratory of Astronomical Optics & Technology, Nanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences</s1><s2>Nanjing 210042</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Nanjing 210042</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Proceedings of SPIE, the International Society for Optical Engineering</title><title level="j" type="abbreviated">Proc. 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Eng.</title><idno type="ISSN">0277-786X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Astronomy</term><term>Chinese</term><term>Diameter</term><term>Direct drive</term><term>Helicopter rotor</term><term>High precision</term><term>High-resolution methods</term><term>Information processing</term><term>Motor control</term><term>Motor drives</term><term>Position control</term><term>Position measurement</term><term>RISC processor</term><term>Shafts</term><term>Telescopes</term><term>Tool holder</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Haute résolution</term><term>Traitement information</term><term>Chinois</term><term>Mesure position</term><term>Entraînement moteur électrique</term><term>Entraînement direct</term><term>Télescope</term><term>Astronomie</term><term>Porte outil</term><term>Diamètre</term><term>Commande position</term><term>Contrôle moteur</term><term>Rotor hélicoptère</term><term>Arbre transmission</term><term>Précision élevée</term><term>Processeur RISC</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Astronomie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Along with the development of space and astronomy science, production of large aperture telescope and super large aperture telescope will definitely become the trend. It's one of methods to solve precise drive of large aperture telescope using direct drive technology unified designed of electricity and magnetism structure. A direct drive precise rotary table with diameter of 2.5 meters researched and produced by us is a typical mechanical & electrical integration design. This paper mainly introduces position measurement control system of direct drive motor. In design of this motor, position measurement control system requires having high resolution, and precisely aligning the position of rotor shaft and making measurement, meanwhile transferring position information to position reversing information corresponding to needed motor pole number. This system has chosen high precision metal band coder and absolute type coder, processing information of coders, and has sent 32-bit RISC CPU making software processing, and gained high resolution composite coder. The paper gives relevant laboratory test results at the end, indicating the position measurement can apply to large aperture telescope control system. This project is subsidized by Chinese National Natural Science Funds (10833004).</div></front></TEI><affiliations><list><country><li>République populaire de Chine</li></country><settlement><li>Pékin</li></settlement></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Li Ying" sort="Li Ying" uniqKey="Li Ying" last="Li Ying">LI YING</name></noRegion><name sortKey="Li Ying" sort="Li Ying" uniqKey="Li Ying" last="Li Ying">LI YING</name><name sortKey="Li Ying" sort="Li Ying" uniqKey="Li Ying" last="Li Ying">LI YING</name><name sortKey="Wang Daxing" sort="Wang Daxing" uniqKey="Wang Daxing" last="Wang Daxing">WANG DAXING</name><name sortKey="Wang Daxing" sort="Wang Daxing" uniqKey="Wang Daxing" last="Wang Daxing">WANG DAXING</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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