微量Clark型溶解氧传感器透氧膜的研究
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摘要
设计两组实验,分别对不同材质、不同厚度的透氧膜进行氧气透过性、热收缩性、拉伸性能和耐化学介质浸泡性能的测试和评价,通过比较0.03 mm厚度的聚乙烯(PE)薄膜、聚四氟乙烯(PTFE)薄膜和聚全氟乙丙烯(FEP)薄膜以及0.045 mm和0.05 mm厚度FEP薄膜的测试数据,得出0.03 mm的FEP薄膜综合性能最优的结论。最后,将0.03 mm的FEP透氧膜放入北京华科仪科技有限公司的HK-258便携式溶解氧分析仪,与其原有商用膜进行比较,实验表明0.03 mm的FEP透氧膜具有更快的氧气透过速度和更高的氧气透过率,可以提高自制溶解氧传感器的响应速率,使自制溶解氧传感器达到10~(-9)级检测精度。
We have designed two experiments to test and assess oxygen permeable membranes made of different materials and having different thickness. The parameters investigated were oxygen permeability, thermal contractibility, tensile properties and the effects of immersion in liquids. According to the results of the permeable membrane tests, we analyzed the combined properties of these membranes. The membranes compared were a polyethylene membrane(PE), a polytetrafluoroethylene membrane(PTFE), and a fluorinated ethylene-propylene membrane(FEP), which all had a thickness of 0.03 mm, as well as FEP membranes with thicknesses of 0.045 mm and 0.05 mm. The results showed that the FEP membrane with a thickness of 0.03 mm had the best quality. When compared with a commercial membrane from a portable dissolved oxygen analyzer HK-258(Beijing Huakeyi Technology Co. Ltd.), the FEP membrane with a thickness of 0.03 mm showed faster oxygen permeation rate and higher oxygen permeability. In summary, if the FEP membrane with a thickness of 0.03 mm is used in a dissolved oxygen sensor, the response rate of the sensor can be improved, and the precision of the sensor can reach the 10~(-9) level.
We have designed two experiments to test and assess oxygen permeable membranes made of different materials and having different thickness. The parameters investigated were oxygen permeability, thermal contractibility, tensile properties and the effects of immersion in liquids. According to the results of the permeable membrane tests, we analyzed the combined properties of these membranes. The membranes compared were a polyethylene membrane(PE), a polytetrafluoroethylene membrane(PTFE), and a fluorinated ethylene-propylene membrane(FEP), which all had a thickness of 0.03 mm, as well as FEP membranes with thicknesses of 0.045 mm and 0.05 mm. The results showed that the FEP membrane with a thickness of 0.03 mm had the best quality. When compared with a commercial membrane from a portable dissolved oxygen analyzer HK-258(Beijing Huakeyi Technology Co. Ltd.), the FEP membrane with a thickness of 0.03 mm showed faster oxygen permeation rate and higher oxygen permeability. In summary, if the FEP membrane with a thickness of 0.03 mm is used in a dissolved oxygen sensor, the response rate of the sensor can be improved, and the precision of the sensor can reach the 10~(-9) level.
引文
[1] 中华人民共和国国家环境保护部. 水质溶解氧的测定电化学探头法: HJ 506- 2009 [S]. 北京: 中国环境科学出版社, 2009. Ministry of Environmental Protection of People's Republic of China. Water quality-determination of dissolved oxygen-electrochemical probe method: HJ 506- 2009 [S]. Beijing: China Environmental Science Press, 2009. (in Chinese)
[2] 郑贵林, 徐沾伟. 一种新型高精度溶解氧传感器的设计[J]. 传感器与微系统, 2012, 31(2): 112- 114. ZHENG G L, XU Z W. A new design of high-precision dissolved oxygen sensor[J]. Transducer and Microsystem Technologies, 2012, 31(2): 112- 114. (in Chinese)
[3] LEE J H, LIM T S, SEO Y W, et al. Needle-type dissolved oxygen microelectrode array sensors for in situ measurements[J]. Sensors and Actuators B, 2007, 128(1): 179- 185.
[4] SAHOO P, ANANTHANARAYANAN R, MALATHI N, et al. Pulsating potentiometric titration technique for assay of dissolved oxygen in water at trace level[J]. Analytica Chimica Acta, 2010, 669: 17- 24.
[5] 陈云龙, 刘海波, 边宝丽, 等. 数字式溶解氧分析仪的研制[C]//第七届中国在线分析仪器应用及发展国际论坛暨展览会. 北京, 2014. CHEN Y L, LIU H B, BIAN B L, et al. Development of a digital dissolved oxygen analyzer[C]//The 7th International Forum & Exhibition for China Online Analytical Instrument Application and Development. Beijing, 2014. (in Chinese)
[6] 肖艺挺. 核电站凝结水氧含量超标问题分析[J]. 企业技术开发, 2015, 34(29): 172- 178. XIAO Y T. Analysis of excess oxygen content in condensate of nuclear power station[J]. Technological Development of Enterprise, 2015, 34(29): 172- 178. (in Chinese)
[7] 戴鑫林. 含氟材料功能膜在传感器上的应用[J]. 有机氟工业, 1989, 3: 28- 30. DAI X L. Application of functional membrane containing fluorine materials on sensors[J]. Organic Fluorine Industry, 1989, 3: 28- 30. (in Chinese)
[8] 辛联庆, 陈娟, 朱祥庭. 微量溶解氧传感器的研制[J]. 电子测量技术, 2014, 37(3): 89- 92. XIN L Q, CHEN J, ZHU X T. Development of trace amounts of dissolved oxygen sensor[J]. Electronic Measurement Technology, 2014, 37(3): 89- 92. (in Chinese)
[9] 张鑫. 基于Clark电极原理溶解氧传感器的制备与研究[D]. 镇江: 江苏大学, 2014. ZHANG X. Fabrication and investigation on the dissolved oxygen sensor based on the principle of Clark electrode[D]. Zhenjiang: Jiangsu University, 2014. (in Chinese)
[10] LUO J, EITEL R. An integrated low temperature co-fired ceramic-based Clark-type oxygen sensor[J]. IEEE Sensors Journal, 2017, 17(6): 1590- 1595.
[11] 辛联庆. 电化学式微量溶解氧检测方法的研究[D]. 北京: 北京化工大学, 2014. XIN L Q. A study on micro scale dissolved oxygen detect method[D]. Beijing: Beijing University of Chemical Technology, 2014. (in Chinese)
[12] 邱发强. 溶解氧检测及传感技术的研究[D]. 北京: 北京化工大学, 2012. QIU F Q. Study of detecting dissolved oxygen and sensing technology[D]. Beijing: Beijing University of Chemical Technology, 2012. (in Chinese)
[2] 郑贵林, 徐沾伟. 一种新型高精度溶解氧传感器的设计[J]. 传感器与微系统, 2012, 31(2): 112- 114. ZHENG G L, XU Z W. A new design of high-precision dissolved oxygen sensor[J]. Transducer and Microsystem Technologies, 2012, 31(2): 112- 114. (in Chinese)
[3] LEE J H, LIM T S, SEO Y W, et al. Needle-type dissolved oxygen microelectrode array sensors for in situ measurements[J]. Sensors and Actuators B, 2007, 128(1): 179- 185.
[4] SAHOO P, ANANTHANARAYANAN R, MALATHI N, et al. Pulsating potentiometric titration technique for assay of dissolved oxygen in water at trace level[J]. Analytica Chimica Acta, 2010, 669: 17- 24.
[5] 陈云龙, 刘海波, 边宝丽, 等. 数字式溶解氧分析仪的研制[C]//第七届中国在线分析仪器应用及发展国际论坛暨展览会. 北京, 2014. CHEN Y L, LIU H B, BIAN B L, et al. Development of a digital dissolved oxygen analyzer[C]//The 7th International Forum & Exhibition for China Online Analytical Instrument Application and Development. Beijing, 2014. (in Chinese)
[6] 肖艺挺. 核电站凝结水氧含量超标问题分析[J]. 企业技术开发, 2015, 34(29): 172- 178. XIAO Y T. Analysis of excess oxygen content in condensate of nuclear power station[J]. Technological Development of Enterprise, 2015, 34(29): 172- 178. (in Chinese)
[7] 戴鑫林. 含氟材料功能膜在传感器上的应用[J]. 有机氟工业, 1989, 3: 28- 30. DAI X L. Application of functional membrane containing fluorine materials on sensors[J]. Organic Fluorine Industry, 1989, 3: 28- 30. (in Chinese)
[8] 辛联庆, 陈娟, 朱祥庭. 微量溶解氧传感器的研制[J]. 电子测量技术, 2014, 37(3): 89- 92. XIN L Q, CHEN J, ZHU X T. Development of trace amounts of dissolved oxygen sensor[J]. Electronic Measurement Technology, 2014, 37(3): 89- 92. (in Chinese)
[9] 张鑫. 基于Clark电极原理溶解氧传感器的制备与研究[D]. 镇江: 江苏大学, 2014. ZHANG X. Fabrication and investigation on the dissolved oxygen sensor based on the principle of Clark electrode[D]. Zhenjiang: Jiangsu University, 2014. (in Chinese)
[10] LUO J, EITEL R. An integrated low temperature co-fired ceramic-based Clark-type oxygen sensor[J]. IEEE Sensors Journal, 2017, 17(6): 1590- 1595.
[11] 辛联庆. 电化学式微量溶解氧检测方法的研究[D]. 北京: 北京化工大学, 2014. XIN L Q. A study on micro scale dissolved oxygen detect method[D]. Beijing: Beijing University of Chemical Technology, 2014. (in Chinese)
[12] 邱发强. 溶解氧检测及传感技术的研究[D]. 北京: 北京化工大学, 2012. QIU F Q. Study of detecting dissolved oxygen and sensing technology[D]. Beijing: Beijing University of Chemical Technology, 2012. (in Chinese)