| 一种具有激光光源的高灵敏光电传感器的设计 |
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| 引用本文： | 曹生现,杨善让,李永生,万瑞军,陈立军. 一种具有激光光源的高灵敏光电传感器的设计[J]. 传感器与微系统, 2007, 26(2): 71-72,75 |
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| 作者姓名： | 曹生现 杨善让 李永生 万瑞军 陈立军 |
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| 作者单位： | 1. 华北电力大学,动力工程系,河北,保定,071003;东北电力学院,自动化工程学院,吉林,吉林,132012
2. 东北电力学院,自动化工程学院,吉林,吉林,132012 |
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| 摘 要： | 为解决现有普通光源的比色分光光度计的结构复杂、灵敏度低的问题,设计了一种包括激光光源、激光衰减器、样品流通池和光电转换系统的高灵敏激光流通检测器,通过对多个不同波长的半导体激光二极管进行筛选,设计了一种在可见光范围内(500~800 nm)进行波长分段调谐且性能稳定的激光光源。并成功地用于电厂炉水和给水中痕量硅的快速测定,硅酸根检出限达到1.13μg/L。
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| 关 键 词： | 激光 分光光度计 比耳—朗伯定律 高灵敏度 痕量硅 |
| 文章编号： | 1000-9787（2007）02-0071-02 |
| 修稿时间： | 2006-08-06 |
Design of high sensitive photoelectric transducer with laser source |
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| CAO Sheng-xian,YANG Shan-rang,LI Yong-sheng,WAN Rui-jun,CHEN Li-jun. Design of high sensitive photoelectric transducer with laser source[J]. Transducer and Microsystem Technology, 2007, 26(2): 71-72,75 |
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| Authors: | CAO Sheng-xian YANG Shan-rang LI Yong-sheng WAN Rui-jun CHEN Li-jun |
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| Affiliation: | 1. Department of Thermal Power Engineering, North China Electric Power University, Baoding 071003, China; 2. Department of Automation Engineering, Northeast Institute of Electric Power Engineering, Jilin 132012, China |
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| Abstract: | To refrain from the complex construction and low sensitivity of the spectrophotometric detector,a high sensitive laser flow detector including laser source,attenuator,flow cell and photoelectric sensor is design.A new type of laser source which is reliable and whose wavelengh can be tuned in range of 500~800nm is designed through the optimization of different wavelength semiconductor laser diode.It is successfully used to determine the ppb-level silicate in boiler water and feedwater at power plants.The silicate detection limit measures up to 1.13μg/L. |
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| Keywords: | laser spectrophotometer Lambert-Beer law high sensitive ppb-level silicate |
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