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首页> 外文会议>Proceedings of ESMATS 2011: 14th European space mechanisms and tribology symposium.;Proceedings of ESMATS 2011: 14th European space mechanisms and tribology symposium. >MTG SCAN MECHANISM PREDEVELOPMENT: DESIGN PERFORMANCE
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MTG SCAN MECHANISM PREDEVELOPMENT: DESIGN PERFORMANCE

机译：MTG扫描机制的预开发：设计和性能

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摘要

The MTG instruments are located on a new generationrnof GEO SC, 3 axes stabilized. The scanning of thernEarth along the E/W and the S/N directions shall bernensured by the Scan Mechanisms located ahead thernInstruments, corresponding to challenging pointingrnrequirements. Key requirements are: scan angularrnvelocity stability (accurate slope and low jitter),rnangular pointing restitution accuracy (angular pointingrnknowledge) and overall pointing position accuracyrnwith respect to the commanded position. All thesernperformances are in the μrad – or even sub μrad - rangernover a wide angular stroke, corresponding tornchallenging capabilities.rnIn order to secure the MTG development on theserntopics, pre-development activities were initiated underrnESA funding, one development was being completedrnby SENER under ASTRIUM prime contractor shiprn(France and finally Germany). SENER subcontractedrnCEDRAT for motor development and TNO asrninterferometer and optical consultant, meanwhilernASTRIUM subcontracted the encoder activity tornCODECHAMP.rnThe performances finally demonstrated by thernBreadboard indicate how the target performances arernachieved, together with the lessons learnt which are ofrnparamount importance to further secure therndevelopment of the MTG mission.
机译：MTG仪器位于3轴稳定的新一代rnof GEO SC上。沿E / W和S / N方向对地球的扫描应通过位于仪器前面的扫描机制来保证，这与具有挑战性的指向要求相对应。关键要求是：扫描角速度稳定性（准确的倾斜度和低抖动），角指向恢复精度（角指向知识）和相对于命令位置的整体指向位置精度。所有的sern性能都在一个大角度行程范围内，甚至在一个μrad范围内，具有相应的紧缩能力。为了确保MTG在serntopic上的开发，在ESA的资助下启动了预开发活动，SENER在ASTRIUM prime下完成了一项开发。承包商希恩（法国，最后是德国）。 SENER将电机开发的CEDRAT分包给TNO干涉仪和光学顾问，同时将ASTRIUM的编码器活动分包给CODECHAMP。

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