药粉气溶胶粒子浓度环状静电传感器及应用研究
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摘要
文中以药粉气溶胶为检测对象,采用静电法设计非接触式环状静电传感器,构建传感器结构模型,对传感器灵敏度进行有限元仿真分析并优选结构参数。设计了静电感应传感器信号处理电路,将传感器应用于雾化器中,实现对雾化吸入疗法中药粉气溶胶粒子浓度在线检测。试验结果表明:气流流速对传感器输出信号影响显著,在流速5 L·min-1时,静电传感器检测药粉气溶胶粒子浓度的误差为±4.8%,满足对药粉气溶胶粒子浓度检测的要求。
This paper takes the powder aerosol as detection object,and designs non-contact ring-type electrostatic sensors based on electrostatic method to construct the sensor structure model.The sensitivity of the sensor is analyzed by finite element method,and the structural parameters are optimized.Designing the signal processing and application circuit for the electrostatic induction sensor and applying it in mistorizer to realize the objective of real-time detection for powder concentration of aerosol particles in atomization inhalation therapy.The application experiment shows that the airflow velocity has significant influence on the output signal of the sensor.When the airflow velocity is 5 L·min~(-1),the detection error of powder concentration of aerosol particles is ±4.8%.The result indicates that it meet the requirement of detecting powder concentration of aerosol particles in mistorizer.
This paper takes the powder aerosol as detection object,and designs non-contact ring-type electrostatic sensors based on electrostatic method to construct the sensor structure model.The sensitivity of the sensor is analyzed by finite element method,and the structural parameters are optimized.Designing the signal processing and application circuit for the electrostatic induction sensor and applying it in mistorizer to realize the objective of real-time detection for powder concentration of aerosol particles in atomization inhalation therapy.The application experiment shows that the airflow velocity has significant influence on the output signal of the sensor.When the airflow velocity is 5 L·min~(-1),the detection error of powder concentration of aerosol particles is ±4.8%.The result indicates that it meet the requirement of detecting powder concentration of aerosol particles in mistorizer.
引文
[1]陈瑾,丁希云.复方异丙托溴铵和布地奈德联合雾化吸入治疗小儿哮喘的疗效及护理[J].海峡药学,2012,24(12):100-101.
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[15]罗潇.传感器数据补偿算法的设计与实现[D].武汉:华中科技大学,2011.
[2]Gajewski J B.Accuracy of cross correlation velocity measurements in two-phase gas–solid flows[J].Flow Measurement&Instrumentation,2013,30(6):133-137.
[3]阚哲.基于静电传感器气/固两相流参数测量方法的研究[D].沈阳:东北大学,2010.
[4]许传龙,汤光华,杨道业,等.静电传感器灵敏场有限元仿真研究[J].仪器仪表学报,2007,28(7):1311-1318.
[5]徐一鸣,左洪福,詹志娟,等.基于灵敏度分析的静电传感器优化设计[J].仪器仪表学报,2012,33(5):1084
[6]赵恩彪,李德文,王自亮,等.电荷法测量粉尘密度的试验研究[J].采矿与安全工程学报,2010,27(2):269-272.
[7]Zych M,Petryka L,Kepiński J,et al.Radioisotope investigations of compound two-phase flows in an open channel[J].Flow Measurement&Instrumentation,2014,35(3):11-15.
[8]陈昌鑫,马英卓,代月松,等.基于Lab VIEW的虚拟实验系统设计[J].电子科技,2011,24(7):85-87.
[9]李有慧.一种输入输出轨到轨CMOS运算放大器的设计[J].电子科技,2015,28(6):165-169.
[10]解朦朦,王勇超.基于复数陷波器的窄带干扰抑制研究[J].电子科技,2013,26(11):99-103.
[11]Bastien A,Philippe F W,Vinzi G.PLS generalised linear regression[J].Computational Statistics and Data Analysis,2005,48(1):17-46.
[12]Bry X,Trottier C,Verron T,et al.Supervised component generalized linear regression using a PLS-extension of the fisher scoring algorithm[J].Journal of Multivariate Analysis,2013,119(9):47-60.
[13]杨小勇.方差分析法浅析—单因素的方差分析[J].实验科学与技术,2013,11(1):41-43.
[14]刘明磊.正交试验设计中的方差分析[D].哈尔滨:东北林业大学,2011.
[15]罗潇.传感器数据补偿算法的设计与实现[D].武汉:华中科技大学,2011.