Abstract
This paper deals with the development of a LED Light Intensity Distribution Tester. This group is mainly composed by Constant-current Device LED,Photodevice,Voltage Amplifier and Measuring Instrument.
When in the situation of having fixed the forward current and the environmental conditions (general environmental impact is very small), LED is driven with the current source of stable luminescence.And then the photoelectric detector puts the optical signal into a weak signal (that is the photo-voltage caused by photoelectric sensor),meanwhile to enlarge the weak signal by the voltage amplifier and to access to data from the measuring instrument,finally to analyze the LED light intensity distribution through the large number of effective data analysis.
Keywords:LED;Lllumination Intensity; Intensity Distribution; Voltage Amplification; Data Analysis
目 录
中文摘要 i
英文摘要 ii
目录 iii
第一章 前言 1
第二章 LED光强分布测试仪的研制 2
2.1 原理
2.1.1 LED工作原理与基本特性
2.1.2 光敏三极管工作原理与基本特性
2.2 设计电路图
2.2.1 电路图
2.2.2 设计思路
2.3 测试
2.3.1 实验数据
2.3.2 数据分析
2.3.3 误差分析
第三章 结论 9
致谢 10
参考文献 11