面向星模拟器的可调标准色温光源  

Tunable Color Temperature Light Source for Star Simulator

作　　者：陈塬[1,2] 张文明[1] 

机构地区：[1]中国科学院光电技术研究所,成都610209 [2]中国科学院研究生院,北京100039

出　　处：《光电工程》2010年第8期24-28,共5页Opto-Electronic Engineering

摘　　要：针对星敏感器往小型化、高精度、大视场、多参数、高可靠性方向发展的趋势,将颜色温度作为星敏感器姿态辅助判别依据已经成为相关研究内容。因此,本文以星模拟器为应用背景,以模拟恒星星体色温为目标,主要讨论了恒星与色温的相关定义,将实现在较宽范围的色温可调而且稳定可靠作为主要研究内容。为了实现这一目标,本文在分析了色度学、光度学相关知识的基础之上,改进了颜色相加的计算方法,搭建了以TMS320F2812数字信号控制器和积分球为核心的实验平台。实验结果表明:利用该方法可以实现从2600～10000K范围内色温的连续可调;在外界环境温度相同的条件下能够保证色温的稳定性和一致性;指出了环境温度是影响色温稳定性的重要原因。The direction of the development for the star tracker is to realize the small size,high-precision,large field of view,multi-parameter,and high reliability.Thus,color temperature,as the secondary gist of the attitude discrimination of the star tracker,has been added into the research.This article focused on the definition of the star associated with the color temperature,and mainly researched achieving a wide range of adjustable,stable and reliable color temperature light source.In order to achieve this goal,based on analyzing the color science,photometric and radiometric studies,we improved the method of calculating the color addition,and built the entire experiment platform based on TMS320F2812 DSC and integrating sphere.Experimental results show that：the color temperature from 2 600 K to 10 000 K continuous variation can be achieved through this method.Under the same conditions（outside ambient temperature）,the stability and consistency of color temperature had been validated.Moreover,it is pointed out that the most important reasons affecting the stability of the color temperature is the ambient temperature.

关 键 词：星模拟器 色温 光源 星敏感器 

分 类 号：V556.8[航空宇航科学与技术—人机与环境工程]