作者：王相，庞喜龙
单位：威海精讯畅通电子科技有限公司，山东威海 264200
中图分类号：TP212.2               
文献标识码：A               
文章编号：1006-883X(2021)01-0009-05
收稿日期：2020-11-03

摘要：水中溶解氧含量是衡量水质的重要指标之一，通过溶解氧传感器可对水体中的溶解氧含量进行检测。国外对溶解氧传感器的研究较早，工艺水平较高；国内起步晚，且多是实验研究，在批量生产高品质传感器方面仍待发展。该文设计一种包括载体、胶层、荧光层、保护层4层结构的氧敏感膜。荧光层采用四乙氧基硅烷为前驱体，三氟丙基三甲基氧硅烷为有机改性剂，三（4,7-联苯-1,10-邻菲罗啉）二氯化钌为荧光标记物，能有效检测溶解氧含量；保护层可防止外界光线的干扰并减少外界的水对传感器造成损害，能有效提高膜的稳定性和使用寿命。
关键词：溶解氧；荧光层；保护层；荧光指示剂

Preparation of Oxygen Sensor Membrane Head Based on Fluorescence Quenching Principle
WANG Xiang, PANG Xilong
Weihai JXCT Electronics Technology Co., Ltd., Weihai 264200, China
Abstract: Dissolved oxygen content in water is one of the important indicators to measure water quality. The dissolved oxygen sensor can detect the dissolved oxygen content in the water body. Foreign research on dissolved oxygen sensors is relatively early, and the technological level is relatively high; domestically, they started late, and most of them are experimental studies, and the mass production of high-quality sensors is still to be developed. This paper designs an oxygen sensitive film with a four-layer structure including a carrier, a glue layer, a fluorescent layer, and a protective layer; the fluorescent layer uses tetraethoxysilane as the precursor, and trifluoropropyltrimethyloxysilane as the organic modifier. Tris (4,7-biphenyl-1,10-phenanthroline) ruthenium dichloride is a fluorescent marker, which can effectively detect the dissolved oxygen content; the protective layer can prevent the interference of external light and reduce the impact of external water on the sensor Damage, can effectively improve the stability and service life of the membrane.
Key words: dissolved oxygen; fluorescent layer; protective layer; fluorescent indicator

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备注：2021年 第27卷 第01期