目 录
摘要
Abstract
第一章 绪论.....................................................................................................................1
§1.1 辐射测量的历史................................................................................................1
§1.2 紫外线指数预报的现状....................................................................................2
§1.3 紫外线指数测量的意义....................................................................................3
§1.4 本文所研究的问题............................................................................................4
§1.5 课题来源............................................................................................................4
第二章 紫外线指数简介.................................................................................................6
§2.1 太阳辐射............................................................................................................6
§2.2 紫外辐射............................................................................................................7
§2.2.1 紫外辐射的分类:................................................................................... 7
§2.2.2 影响紫外辐射的因子............................................................................... 8
§2.2.3 紫外辐射对地球生物的影响................................................................... 9
§2.3 紫外线指数......................................................................................................10
§2.3.1 紫外线指数的定义................................................................................. 10
§2.3.2 红斑作用光谱曲线................................................................................ 11
§2.3.3 紫外线指数的计算................................................................................. 11
第三章 紫外线指数定标简介.......................................................................................13
§3.1 紫外线指数的校验标准及追溯体系.............................................................13
§3.2 紫外线指数参考标准的建立流程.................................................................13
§3.2.1 辐射仪器的校验.................................................................................... 14
§3.2.2 检验仪器对于太阳天顶角改变的反应................................................ 14
§3.2.3 仪器狭缝函数(slit function)的确定 ................................................. 14
§3.3 紫外线指数工作标准的建立流程.................................................................15
§3.3.1 功能检定................................................................................................ 15
§ 3.3.1.1 余弦反应与方位角反应的测量 ................................................... 15
§ 3.3.1.2 光谱反应函数(SRF,spectral responsivity function)的检测 .....15
§3.3.2 校正系数的确定.................................................................................... 16
第四章 紫外线指数测试系统设计...............................................................................18
§4.1 紫外线指数测试系统框图及实物..................................................................18
§4.2 紫外线指数测试系统工作原理......................................................................20
§4.3 氮化镓紫外线指数测试系统的特点.............................................................20
§4.4 氮化镓肖特基紫外探测器简介.....................................................................21
§4.5 肖特基(Schottky)器件的光谱响应曲线 .................................................. 23
§4.6 系统主要电子元件的选择..............................................................................24
§4.6.1 运算放大器 OPA111 .............................................................................. 24
§4.6.2 集成温度传感器 AD590 ........................................................................26
§4.6.3 模数转换芯片 MAX154 ........................................................................ 27