• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Advanced Technology Optical Telescopes V >High-resolution incremental tape encoder on the William Herschel Telescope
【24h】

High-resolution incremental tape encoder on the William Herschel Telescope

机译：William Herschel望远镜上的高分辨率增量式磁带编码器

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Abstract: Large, modern optical telescopes demand high performance pointing and tracking of the mount unless alternative methods of correcting the telescope `beam' are to be completely relied upon. This is rarely the case and `open-loop' specifications are still very demanding. The move from precision-geared to friction driven axes has excluded the use of gear-driven encoders while friction-driven encoders have not proved successful. Fiber and laser gyros are not sufficiently developed for use as a primary encoding system although they have useful inertial properties for inclusion in some systems. Tape encoders, which have been around for a very long time, are the major contender for today's applications. A commercially available inductive tape encoder system has been fitted to the 4.2 m William Herschel Telescope in order to properly evaluate its performance and hence its suitability for use with the 8 m Gemini telescopes. The encoder system and the method adopted for fitting it to an operational telescope is briefly described and the results from performance tests are presented. Subsequent investigations into sources of error and the desirability and methods of correcting them are discussed and future work is considered.!3
机译：摘要：除非要完全依靠替代望远镜“光束”的替代方法，否则，大型现代光学望远镜需要对支架进行高性能的指向和跟踪。这种情况很少发生，并且“开环”规范仍然非常苛刻。从精密齿轮传动轴到摩擦驱动轴的转移已经排除了齿轮驱动编码器的使用，而摩擦驱动编码器却没有成功。尽管光纤陀螺仪和激光陀螺仪具有有用的惯性特性，可以包含在某些系统中，但仍未充分开发出来用作主编码系统。磁带编码器已经存在了很长时间，是当今应用程序的主要竞争者。 4.2 m的William Herschel望远镜已安装了市售的感应式磁带编码器系统，以正确评估其性能，从而评估其与8 m Gemini望远镜一起使用的适用性。简要介绍了编码器系统和将其安装到望远镜中所采用的方法，并介绍了性能测试的结果。讨论了随后对错误源及其可取性和纠正方法的研究，并考虑了今后的工作。3

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号