传感技术学报2017，Vol.30Issue(11)：1660-1665,6.DOI:10.3969/j.issn.1004-1699.2017.11.008
水质油污染原位传感器稳定性设计
Stability Design of Water Quality in-Situ Sensor for Oil Pollution
摘要
Abstract
Due to the instability of the light source,ambient light interference,the non-linearity of the standard curve and the influence of contamination,the stability of the sensor was poor. So,the article based on the principle of UV fluorescence measurement,and had optimized design in structure,craft and algorithm. Optical path design introduced a reference optical path,ZEMAX software simulation results show that"cross"optical path was feasible. PTFE,optical coating and brush design could effectively prevent oil and biological adhesion. Avoid light mask crea-ted a detection dark cavity for the sensor,which effectively solved the problem of ambient light interference. Experi-ments showed that the variation coefficient of the fluorescence signal was less than 0.3% during the sensor measure-ment. The coefficient of variation of fluorescence signal was 1.28% in light intensity decay experiment with 30 μg/L as an example. When the sample concentration was 62.4 μg/L,the expansion uncertainty was 0.256 μg/L(k=2). The stability design of the sensor had achieved satisfactory results,but couldn't actually application,because that the main factors such as turbidity and temperature were not introduced into the algorithm correction model.关键词
水质监测/油污染/紫外荧光法/稳定性/参比光路Key words
water quality monitoring/oil pollution/UV fluorescence method/stability/reference optical path分类
资源环境引用本文复制引用
褚东志,马海宽,吴宁,曹煊,孔祥峰,郭翠莲,王昭玉..水质油污染原位传感器稳定性设计[J].传感技术学报,2017,30(11):1660-1665,6.基金项目
国家重点研发计划项目(2016YFC1400803,2016YFC1400804) （2016YFC1400803,2016YFC1400804）
山东省优秀中青年科学家科研奖励基金目(BS2014HZ015) （BS2014HZ015）
