Subjects: Geosciences >> Space Physics submitted time 2016-04-22
Abstract： Regarding the shutter of space imager as the research background,the advantages and disadvantages of different types of shutters are introduced. The rotary-disc shutter is selected as the research object. Starting from the mode of exposure, the control strategy of shutter is investigated. The reason for selecting PMSM motor is analyzed, and a controller based on Digital Signal Processor (DSP) is designed. Furthermore, the maximum error of exposure time is less than 3.0%, which meets the performance requirements of telescope imager.
Peer Review Status:
Awaiting Review
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