| 宽光谱消光比智能化测试系统的实验研究 |
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| 引用本文： | 程冠晓,李国华.宽光谱消光比智能化测试系统的实验研究[J].曲阜师范大学学报,2005,31(4):61-64. |
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| 作者姓名： | 程冠晓 李国华 |
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| 作者单位： | 曲阜师范大学激光研究所,山东省曲阜市273165 |
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| 摘 要： | 基于相干检测原理设计了一套由单色仪、数字锁相放大器和计算机联合使用的透射式偏光镜消光比智能化测试实验系统,采用双频双光路分光单探测器接收锁相放大器分离信号比对法进行源补偿测量,克服了光源光强漂移所带来的影响;实现了可见光区消光比的精确自动测量,而且可以测得近似的消光光谱.
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| 关 键 词： | 消光比 消光光谱 相干检测 自动测量 |
| 文章编号： | 1001-5337（2005）04-0061-04 |
| 收稿时间： | 2004-12-26 |
| 修稿时间： | 2004-12-26 |
Study of an Automatic Measurement System for Extinction Ratio in Visible Spectrum |
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| CHENG Guan-xiao, LI Guo-hua.Study of an Automatic Measurement System for Extinction Ratio in Visible Spectrum[J].Journal of Qufu Normal University(Natural Science),2005,31(4):61-64. |
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| Authors: | CHENG Guan-xiao LI Guo-hua |
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| Institution: | Laser Institute of Qufu Normal University, 273165, Qufu, Shangdong, PRC |
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| Abstract: | According to the principle of correlation detection, an automatic measurement system for extinction ratio of polarizer consisted of monochromator and DSP Lock - in amplifier and compurer is designed not only to eliminate the influence on measurement accuracy caused by drift of intensity of light source but also to obatain approximate extinction spectrum. |
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| Keywords: | extinction ratio extinction spectrum correlation detection automatic measurement |
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