用于测量圆顶视宁度的微温脉动仪的研制  

A System for Measuring Atmospheric Temperature Fluctuation in a Dome

作　　者：王红帅[1,2] 李志[1] 刘威卫[1] 

机构地区：[1]中国科学院国家天文台云南天文台,云南昆明650011 [2]中国科学院研究生院,北京100049

出　　处：《天文研究与技术》2010年第1期60-64,共5页Astronomical Research & Technology

基　　金：国家自然科学基金(10873034)资助

摘　　要：为评价云南天文台丽江2.4m望远镜的圆顶视宁度,研制了一种能测量温度、气压和微温脉动的仪器。在天文圆顶附近,望远镜前方光路上,放置几组微温传感器,可以测得圆顶附近影响天文观测的湍流强度的分布情况。介绍了这套仪器的基本原理,电路设计,程序设计,实验定标以及一个简单的测试。For evaluating the dome seeing of the 2.4m telescope at Lijiang of the Yunnan Observatory, an instrument is designed to measure temperature, air pressure, and atmospheric temperature fluctuations in an astronomical dome. The distribution of turbulence intensity in the dome affecting seeing can be obtained from the temperature data collected by some sensors set in the light path of the telescope. The basic principle and circuit/software design are described in this paper. In addition, the calibration and on-site test results are presented.

关 键 词：圆顶视宁度 微温脉动仪 频率测量 

分 类 号：P414.5[天文地球—大气科学及气象学]