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The Fulfillment of Two-level Control in experimental Optical Delay Line of Michelson Stellar Interferometer
Li Chao; Zhen Wu; Jianing Wang; Yi Liu; Yi Chen
2010-07-21
Source PublicationOptical and Infrared Interferometry
Volume7734
Issue7734
PagesVol.7734 4G-1-7
Conference Date2010-6-27
Conference PlaceSan Diego, California, USA
Funding OrganizationThe International Society for Optical Engineering
PublisherSPIE
Abstract
This article is focused on the two-level control system of ODL, which are divided into bottom layer control of linear motor and upper layer control of Piezoelectric Transducer(PZT).This ODL are designed to compensate geometrical optical path difference ,which results from the earth rotation, and other disturbances, with high- accuracy and real time. Based on the PLC of PMAC controller, the linear motor tracks the trajectory of the simulated optical path difference to compensate roughly. PZT then compensates the rest error measured by ZLM almost real time. A detailed fulfillment of this method is shown in the article, and the first result data is produced. The result implies that this method is efficient. This article offers the reference for the ODL development with the practical high accuracy of compensation.
KeywordMichelson Stellar Interferometry Optical Delay Line (Odl) Control System Linear Motor Pzt
Subject Area恒星光干涉及综合孔径
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/605
Collection中国科学院南京天文光学技术研究所_会议论文
天文光谱和高分辨成像技术研究室_会议论文
Recommended Citation
GB/T 7714
Li Chao,Zhen Wu,Jianing Wang,et al. The Fulfillment of Two-level Control in experimental Optical Delay Line of Michelson Stellar Interferometer[C]:SPIE,2010:Vol.7734 4G-1-7.
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