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Control System Design for High Precision Magnetic Analyzer
Jianing Wang; Liquang Liu; Yizhong Zeng
Source PublicationAdvanced Software and Control for Astronomy
PagesVol.6274 1B-1-7
Conference Date2006-5-24
Conference PlaceOrlando, FL
Funding OrganizationThe International Society for Optical Engineering
High precision magnetic analyzer is one of key points in technologies of Chinese space solar telescope, which is under pre-investigation. Magnetic analyzer needs a modulation component to change its polarization state. For ground-based use, usually electroptics crystal KD*P is a good option. However KD*P needs a power supply as high as thousands volts.

In space environment, such a high pressure source is hardly available. Therefore we have to use an alternative, an optomechical modulator. In the modulator, the related optical components rotate precisely to realize modulation. This raises a crucial request for position accuracy and positioning times of optical components rotation.

This paper describes our developing process of the electric control for the magnetic analyzer. Firstly, hardware facilities, control software design and test results as well are given. Then, some problems in manufacture and adjustment are analyzed and discussed. After overall optical, mechanical and electric tests, it shows that the accuracy of rotation position of the optical components is better than 10’’(p-p)(checking with a precise 24 sides’ standard); while time for rotating 90 degrees is less than 2 seconds. The results demonstrate that the magnetic analyzer has met the design requirements.
KeywordMagnetic Analyzer Pci-1751 Control Card Stepping Motor Induction Synchronizer
Subject Area太阳望远镜 ; 自动控制
Document Type会议论文
Recommended Citation
GB/T 7714
Jianing Wang,Liquang Liu,Yizhong Zeng. Control System Design for High Precision Magnetic Analyzer[C]:SPIE,2006:Vol.6274 1B-1-7.
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