The Cassegrain focal station of the Gran Telescopio Canarias (GTC)
The Cassegrain focal station of the Gran Telescopio Canarias (GTC)
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加那利群岛大望远镜 (GTC) 的卡塞格林焦点站
DOI：
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发表时间：
2020
期刊：
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通讯作者：
Nauzet Salazar
中科院分区：
文献类型：
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作者：
R. Sanquirce;I. Uriarte;G. Murga Llano;Christos Dalgkalis;J. Ariño;David Fdz. Oteo;J. Barrena;G. Prieto;B. Siegel;Alfonso Cardell;Nauzet Salazar
加那利望远镜（GTC）最近装备了主卡塞格伦焦点站（CG-Set），该焦点站由仪器旋转器（IR）和相应的采集、制导和波前传感（AGWS）系统组成。在维护操作期间，百叶窗保护科学仪器。IDOM于2017年11月获得该设备的供应，包括其CG-Set的设计，制造，组装和调试。该设备于2019年12月被运送到穆赫乔斯天文台（ORM）。现场验收测试于2020年1月成功完成。望远镜的最后安装工作已于2020年11月底完成。卡塞格伦站具有紧凑轻便的设计和创新的电缆缠绕解决方案。这种设计的结果是平滑和精确的运动，同时保证了良好的访问相关组件，简化了可维护性。CG-Set允许仪器旋转±270º的运动范围，提供优于7弧秒的跟踪精度。AGWS力学提供了所需的指向和聚焦能力，使用参考星精确地校正望远镜驱动器和光学器件。Cassegrain焦点站在正常运行期间由望远镜控制系统（GCS）远程指挥，在维护期间由IDOM提供的本地控制系统（LCS）远程指挥。为此，可以在不同位置连接两个移动hmi。本地联锁和安全系统（LISS）与望远镜联锁和安全系统（ISS）通信，以确保CG-Set在本地和远程操作时的安全运行。该系统被安置在一个主动热控电子柜中。该项目由西班牙和加那利政府（欧洲区域发展基金）资助。
The Gran Telescopio Canarias (GTC) has been recently equipped with the Main Cassegrain Focal Station (CG-Set), composed of an Instrument Rotator (IR) and the corresponding Acquisition, Guiding and Wavefront Sensing (AGWS) system. A shutter protects the Science Instrument during maintenance operations. IDOM was awarded in November 2017 the supply of this equipment, covering its design, manufacturing, assembly and commissioning of the CG-Set. The equipment was transported to the Observatorio del Roque de los Muchachos (ORM) in December 2019. The Site Acceptance Tests were successfully completed in January 2020. The final installation on the telescope has been carried out at the end of November 2020. The Cassegrain Station features a compact and lightweight design with an innovative cable wrap solution. This design results in a smooth and precise movement, whilst guarantees good access to relevant components, simplifying the maintainability. The CG-Set permits a range of movement of the Instrument Rotator of ±270º, providing a tracking accuracy better than 7 arcsec. The AGWS Mechanics provides the required pointing and focusing capabilities, using a reference star to accurately correct the telescope drives and optics. The Cassegrain Focal Station is remotely commanded from the Telescope Control System (GCS) during normal operation and from the Local Control System (LCS) supplied by IDOM for maintenance. For this purpose, two mobile HMIs can be connected at different locations. The Local Interlock and Safety System (LISS) communicates with the Telescope Interlock and Safety System (ISS) to guarantee safe operation of the CG-Set on both local and remote operation. This system is accommodated in an active thermally controlled electronic cabinet The project has been financed by both Spanish and Canary Governments (European Regional Development Funds).