Ⅱ型多功能天文经纬仪图像采集系统  

The Image Acquisition System of the YNAO Multi-function Astronomical Theodolite Ⅱ

作　　者：张益恭 苏婕[1,2,3,4] 杨磊 王建成[1,2,3,4] 陈林飞[1,2,3] 程向明[1,2,3,4] 张冠军[1,2,3,4] Zhang Yigong;Su Jie;Yang Lei;Wang Jiancheng;Chen Linfei;Cheng Xiangming;Zhang Guanjun(Yunnan Observatories,Chinese Academy of Sciences,Kunming 650216,China;Key Laboratory for the Structure and Evolution of Celestial Objects,Chinese Academy of Sciences,Kunming 650216,China;Center for Astronomical Mega-Science,Chinese Academy of Sciences,Beijing 100101,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院云南天文台,云南昆明650216 [2]中国科学院天体结构与演化重点实验室,云南昆明650216 [3]中国科学院天文大科学研究中心,北京100101 [4]中国科学院大学,北京100049

出　　处：《天文研究与技术》2021年第3期388-396,共9页Astronomical Research & Technology

基　　金：国家自然科学基金(11503083,11403101);云南省专项基金(2011BC010)资助.

摘　　要：Ⅱ型多功能天文经纬仪是中国科学院云南天文台为了满足利用多台仪器组网监测本地铅垂线变化信息的需求研制的一种地面天体测量仪器。仪器的图像采集系统使用3台非制冷CCD作为采集终端,工作在外触发模式,利用望远镜控制系统提供的外触发信号按照观测时序触发相机。介绍了望远镜的具体工作模式,对图像采集系统的工作流程给予说明;介绍了采集系统的硬件构成、软件框架和涉及的主要编程方法;给出了图像采集系统的软件工作界面和所采集的图像,并对拍摄的恒星像成像质量进行了简单分析。The YNAO Multi-function Astronomical Theodolite Ⅱ is a ground-based astrometric telescope.Two telescopes form the observation network with the first generation YNAO Multi-function Astronomical Theodolite to monitor the variation of plumb line of observing site.Its main imaging devices are three digital CCD cameras without cooling,which work in external trigger mode.When the telescope is observing,three sets of triggering signals are generated from the telescope control system,for controlling three digital CCD cameras,respectively.In the paper,the detailed information of the telescope operation mode is showed,and an introduction to workflow of the image acquisition system is given.The details of hardware constitution,software framework and main programming methods of software are also given.For demonstrating the effectiveness of the system,a screenshot of the user interface of the software,some images acquired by the cameras,and an analysis of a stellar image recorded by the camera are provided.

关 键 词：天文仪器 天体测量 经纬仪 图像采集 程序设计 

分 类 号：P111[天文地球—天文学]