| 生物超弱发光采集系统及控制电路设计 |
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| 引用本文： | 樊琳琳,张建民,刘锴,习岗,孟晓丽,张晓辉,李少华. 生物超弱发光采集系统及控制电路设计[J]. 现代电子技术, 2010, 33(21): 108-111,116 |
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| 作者姓名： | 樊琳琳 张建民 刘锴 习岗 孟晓丽 张晓辉 李少华 |
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| 作者单位： | [1]陕西师范大学物理学与信息技术学院,陕西西安710062 [2]西安理工大学理学院,陕西西安710054 [3]西安理工大学自动化与信息工程学院,陕西西安710048 [4]武警西安指挥学院数理教研室,陕西西安710038 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 生物超弱发光是生物系统在生命活动中的微弱发光现象。为了准确测量生物超弱发光,设计了一种用于生物超微弱发光的专用采集系统。系统的激发光源由单只大功率LED及光学系统构成,用压控恒流源调整LED光照强度,通过电子快门精确控制光探测器的采集时间。测量金心吊兰叶片的延迟发光结果表明,该系统测量精度高、重复性好。
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| 关 键 词： | 生物超弱发光 检测 电子快门 压控恒流源 |
Design of Ultra-weak Bioluminescence Measurement System and Control Circuit |
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| FAN Lin-lin,ZHANG Jian-min,LIU Kai,XI Gang,MENG Xiao-li,ZHANG Xiao-hui,LI Shao-hua. Design of Ultra-weak Bioluminescence Measurement System and Control Circuit[J]. Modern Electronic Technique, 2010, 33(21): 108-111,116 |
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| Authors: | FAN Lin-lin ZHANG Jian-min LIU Kai XI Gang MENG Xiao-li ZHANG Xiao-hui LI Shao-hua |
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| Affiliation: | 1.College of Physics and Information Technology,Shaanxi Normal University,Xi＇an 710062,China;2.School of Sciences,Xi＇an University of Technology,Xi＇an 710054,China;3.Faculty of Automation and Information Engineering,Xi＇an University of Technology,Xi＇an 710048,China;4.Mathematics and Physics Section,Xi＇an Commanding College of CAPF,Xi＇an 710038,China) |
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| Abstract: | Ultra-weak bioluminescence is the phenomenon that biological systems weak luminescence during life activities.A certain system for ultra-weak shimmering measurement is designed.The exciting light source is composed of a single high-power LED and optical systems,by means of adjusting the illumination magnitude of LED and electronic shutter,the timing of light detector can be controlled.Measurement of chlorophytum leaf delayed luminescence results show that the system has high accuracy and good repeatability. |
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| Keywords: | ultra-weak luminescence； detection； electronic shutter； voltage-controlled current source； |
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