摘要
分析了掩埋双p-n结(BDJ)的两个结对光的灵敏度随波长的变化,设计了一种新型便携式单色光波长及其功率测量仪器。该仪器以掩埋双p-n结为波长功率传感器,单片机为处理核心,LED数码管即时显示结果。实现了对单色光波长和功率的准确、快捷、方便的测量。仪器设计定标完成后对汞灯的4条原子谱线分光后进行测量,精度较高,偏差在2 nm范围内。对仪器的硬件、软件及设计思路给出了系统的说明,提出了新的应用展望。
A kind of instrument to measure wave length and irradiance of monochromatic light is designed.Based on buried double p-n Junction sensors,the principium has different spectrals responsively for each p-n junction.The output circuit from each junction is differently irradiated by the same monochromatic light,but the ratio of two circuits is invariable.The ratio changes with the monochromatic light wave length.Data is processed by single-chip computer,with output by LED digital display.The portable instrument can provide quick,accurate and convenient measurement.It is used in the measurement for mercury lamp wavelength,with errors within 2 nm.Holistic design,hardware and software are presented in the paper.
出处
《桂林工学院学报》
北大核心
2009年第3期386-389,共4页
Journal of Guilin University of Technology
基金
国家"863"计划资助项目(2002AA313120)
关键词
光学测量
单色光
掩埋双p-n结
单片机
optical measurement
monochromatic light
Buried Double p-n Junction（BDJ）
single-chip computer
