| 相关检测法宽光谱消光比智能化测试系统 |
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| 引用本文： | 程冠晓,李国华,彭捍东,郝殿中. 相关检测法宽光谱消光比智能化测试系统[J]. 激光技术, 2006, 30(2): 161-164 |
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| 作者姓名： | 程冠晓 李国华 彭捍东 郝殿中 |
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| 作者单位： | 1.曲阜师范大学, 激光研究所, 曲阜, 273165 |
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| 摘 要： | 设计了一套基于相关检测原理的高消光比智能化测试系统。该系统把单色仪、数字锁相放大器和计算机等有机组合,取代了原系统由扫描仪提取数据的方法,完成了数据采集和处理的智能化,从而提高了测试速度和测试精度,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,克服了只对单一波长进行消光比测量的缺点。
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| 关 键 词： | 仪器测量与计量 消光比 消光光谱 相关检测 偏光器件 |
| 文章编号： | 1001-3806(2006)02-0161-04 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2005-02-28 |
An automatic measurement system for extinction ratio in visible spectrum based on correlation detection principle |
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| CHENG Guan-xiao,LI Guo-hua,PENG Han-dong,HAO Dian-zhong. An automatic measurement system for extinction ratio in visible spectrum based on correlation detection principle[J]. Laser Technology, 2006, 30(2): 161-164 |
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| Authors: | CHENG Guan-xiao LI Guo-hua PENG Han-dong HAO Dian-zhong |
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| Affiliation: | Institute of Laser Research, Qufu Normal University, Qufu 273165, China |
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| Abstract: | According to the principle of correlation detection,an automatic measurement system for extinction ratio of polarizer composed of monochromator and DSP lock-in amplifier and computer is designed,not only to eliminate the influence of drift of intensity of light source on the measurement accuracy,but also to intelligently control the course of data acquisition and processing,and obatain accurate extinction ratio at any wavelength in a broad band as well as approximate extinction spectrum. |
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| Keywords: | instrumentation measurement and metrology extinction ratio extinction spectrum correlation detection polarizer |
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