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首页> 外文会议>Conference on ground-based and airborne instrumentation for astronomy IV >A new Nasmyth mirror mechanism increases the number of focal stations of the Mercator Telescope
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A new Nasmyth mirror mechanism increases the number of focal stations of the Mercator Telescope

机译：一种新的纳斯米斯镜机构增加了墨卡托望远镜的聚焦站数量

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Originally, the Mercator telescope (Roque de Los Muchachos Observatory, La Palma) only had one Cassegrainand one Nasmyth focal station available. Both foci are currently occupied and the exploitation scheme of theMercator telescope does not allow regular instrument changes. To accommodate our new three-channel imagerMAIA and to allow exible scheduling with rapid follow-up of transient phenomena, we have designed and builta new mechanism for the Nasmyth mirror that enables the use of the second Nasmyth focal station and of twocompact intermediate foci at the front and the rear side of the telescope tube. This mechanism uses high-precisiongears, bearings and optical encoders to allow for exible and very accurate positioning of the Nasmyth mirroralong the rotation and tilt axes. It is controlled by a programmable logic controller (PLC) that is the precursorof a completely new PLC and OPC-UA based telescope control system. We present the design, the constructionand the performance of this new Nasmyth mirror mechanism.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
机译：最初，墨卡托望远镜（拉帕尔玛岛的洛克·德·洛斯·穆恰乔斯天文台）只有一个卡塞格林（Cassegrain）和一个纳斯米斯（Nasmyth）聚焦站。目前这两个焦点都被占用，墨卡托望远镜的开发方案不允许定期更换仪器。为了适应我们的新三通道成像器MAIA并允许对瞬态现象进行快速跟进的灵活调度，我们为纳斯密斯镜设计并建立了一种新的机制，该机制可以使用第二个纳斯密斯聚焦站和两个紧凑的中间焦点。望远镜筒的前侧和后侧。该机构使用高精度齿轮，轴承和光学编码器，可以精确地沿旋转轴和倾斜轴精确定位Nasmyth镜。它由可编程逻辑控制器（PLC）控制，该控制器是全新PLC和基于OPC-UA的望远镜控制系统的前身。我们介绍了这种新型Nasmyth反射镜机构的设计，构造和性能。©（2012）版权所有，美国光电仪器工程师协会（SPIE）。摘要的下载仅允许个人使用。

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