水体重金属检测仪的设计
|
摘要
针对传统水体重金属检测仪存在实时性差、体积大等缺点,设计了一种基于ZigBee无线传输技术的水体重金属检测仪。该系统采用阳极溶出伏安法检测原理,利用恒电位信号激励三电极传感器,使其发生富集、溶出效应,运用微弱电流检测电路检测溶出过程产生的氧化电流大小,在实验室条件下通过重金属标准溶液对仪器进行标定,得到采集电压与重金属离子种类的关系。实际测试结果表明,该检测仪能准确检测水质中重金属的种类,具有检测响应速度快、实时性好等优点,具有一定的推广应用价值。
Aiming at the shortcomings of traditional real-time water metal detectors,such as poor real-time performance and large volume,a metal weight detector based on Zig Bee wireless transmission technology was designed. The system used anodic stripping voltammetry detection principle,constant potential signal excitation three-electrode sensor was used,enrichment and dissolution effect occurred,weak current detection circuit was used to detect the oxidation process generated by the oxidation current size. The relationship between the collecting voltage and the heavy metal ion species was obtained by calibrating the instrument with the heavy metal standard solution under laboratory conditions. The actual test results show that the detector can accurately detect the type of heavy metals in the water,and has the advantages of rapid detection response,good real-time performance,etc.It has certain application value.
Aiming at the shortcomings of traditional real-time water metal detectors,such as poor real-time performance and large volume,a metal weight detector based on Zig Bee wireless transmission technology was designed. The system used anodic stripping voltammetry detection principle,constant potential signal excitation three-electrode sensor was used,enrichment and dissolution effect occurred,weak current detection circuit was used to detect the oxidation process generated by the oxidation current size. The relationship between the collecting voltage and the heavy metal ion species was obtained by calibrating the instrument with the heavy metal standard solution under laboratory conditions. The actual test results show that the detector can accurately detect the type of heavy metals in the water,and has the advantages of rapid detection response,good real-time performance,etc.It has certain application value.
引文
[1]杨赛花.面向环保领域的重金属在线检测系统[D].哈尔滨:哈尔滨工业大学,2015.
[2]朱果逸.痕量重金属电化学检测综述[J].现代科学仪器,2013,30(4):21-29.
[3]余若祯,王红梅,方征,等.重金属离子快速检测技术研究与应用进展[J].环境工程技术学报,2011,30(5):438-422.
[4]李明敏.重金属在线监测仪的硬件设计及测试实验[D].杭州:浙江大学,2012.
[5]赵炎.基于无线网络的水环境重金属自动监测仪器系统设计[D].杭州:浙江大学,2013.
[6]赵学亮,史云.基于溶出伏安法的水质重金属自动监测系统[J].电子技术应用,2011,35(11):30-32.
[7]便携式水体重金属分析仪器设计研究[J].仪表技术与传感器,2017(9):47-49.
[8]张雨泽.水环境重金属检测系统研究[D].北京:北京化工大学,2013.
[9]郭红荪.基于光电复合传感器的重金属检测及无线通讯系统设计[D].杭州:浙江工业大学,2011.
[10]冯琳,李凤莲,张雪英,等.改进可拓识别方法及其在突水水源判别中的应用[J].工矿自动化,2015,41(2):61-65.
[2]朱果逸.痕量重金属电化学检测综述[J].现代科学仪器,2013,30(4):21-29.
[3]余若祯,王红梅,方征,等.重金属离子快速检测技术研究与应用进展[J].环境工程技术学报,2011,30(5):438-422.
[4]李明敏.重金属在线监测仪的硬件设计及测试实验[D].杭州:浙江大学,2012.
[5]赵炎.基于无线网络的水环境重金属自动监测仪器系统设计[D].杭州:浙江大学,2013.
[6]赵学亮,史云.基于溶出伏安法的水质重金属自动监测系统[J].电子技术应用,2011,35(11):30-32.
[7]便携式水体重金属分析仪器设计研究[J].仪表技术与传感器,2017(9):47-49.
[8]张雨泽.水环境重金属检测系统研究[D].北京:北京化工大学,2013.
[9]郭红荪.基于光电复合传感器的重金属检测及无线通讯系统设计[D].杭州:浙江工业大学,2011.
[10]冯琳,李凤莲,张雪英,等.改进可拓识别方法及其在突水水源判别中的应用[J].工矿自动化,2015,41(2):61-65.