| 多波长LED阵列光源叶绿素荧光探测仪电路的单片机实现 |
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| 引用本文： | 司马伟昌,张玉钧,王志刚,赵南京,肖雪,李宏斌,陆志贤,刘文清. 多波长LED阵列光源叶绿素荧光探测仪电路的单片机实现[J]. 仪器仪表学报, 2007, 28(10): 1820-1825 |
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| 作者姓名： | 司马伟昌 张玉钧 王志刚 赵南京 肖雪 李宏斌 陆志贤 刘文清 |
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| 作者单位： | 1. 中国科学院环境光学与技术重点实验室,中国科学院安徽光学精密机械研究所,合肥,230031
2. 中国科学技术大学地球和空间科学学院,合肥,230026 |
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| 基金项目： | 中国科学院知识创新工程项目;安徽省人才培养及科研带头人专项基金 |
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| 摘 要： | 构建了一种新的浮游植物分类检测仪器——多波长LED阵列光源叶绿素荧光探测仪,系统利用调制的多波长LED阵列作为激发光源,测量各个LED激发下总的叶绿素a的荧光强度信号以及水温、水深。介绍了仪器的原理,重点介绍了这个仪器的电路设计：以ADI公司的ADuC841作为微处理器,通过设计合理的光源调制电路,荧光峰值检测电路和数据的采集、处理与存储电路,实现了对浮游植物浓度进行快速、实时、原位和分类测量。系统采样速度快、精度高,而且直接利用电池供电,功耗极低。
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| 关 键 词： | 叶绿素a 峰值检测 |
| 修稿时间： | 2006-12-01 |
MCU realization of chlorophyll fluorometer circuit based on multi-wavelength LED array |
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| Sima Weichang,Zhang Yujun,Wang Zhigang,Zhao Nanjing,Xiao Xue,Li Hongbin,Lu Zhixian,Liu Wenqing. MCU realization of chlorophyll fluorometer circuit based on multi-wavelength LED array[J]. Chinese Journal of Scientific Instrument, 2007, 28(10): 1820-1825 |
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| Authors: | Sima Weichang Zhang Yujun Wang Zhigang Zhao Nanjing Xiao Xue Li Hongbin Lu Zhixian Liu Wenqing |
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| Abstract: | In this paper a new kind of phytoplankton quantification and classification monitoring system-multi-wavelength LED array chlorophyll fluorometer is constructed, the principle of chlorophyll fluorometer and the design of its circuit are emphatically introduced. Based on ADuC841 CPU from ADI, the LED array light source modulation circuit, fluorescence peak circuit system the value detector, and data acquisition, signal processing and memory circuits are designed. With this instrument can measure phytoplankton concentration fast, in real time, in vivo and in situ. |
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| Keywords: | ADuC841 CH375 RCV420 |
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