基于DOE的雾化控制系统设计

发布时间：2018-04-11 09:11

本文选题：LabVIEW + Minitab　；参考：《华南理工大学》2015年硕士论文

【摘要】：本课题针对医疗行业中药液雾化所需的剂量控制功能,利用DOE(试验设计)技术,以研究设计一套响应快速、雾化稳定、控制精度优良的雾化控制系统为目标。在Minitab软件平台上,对采集到的试验数据进行分析,建立数学模型进行参数优化,找出系统设计参数的最优解,从而提高雾化控制系统的准确性、稳定性以及可靠性,实现药液雾化剂量的控制。本文的主要工作有以下三个方面:首先针对雾化控制系统的特点,搭建试验平台,编写Lab VIEW控制程序。利用全因子试验,分析了影响雾化控制系统各因子的显著性,区分出显著性因子和非显著性因子。在此基础上,利用响应曲面设计试验,通过分析试验数据建立了雾化量和雾化量均匀性的数学模型,并对试验因子进行优化分析,从而得到试验因子的最优参数组合,使雾化量在目标值范围内,雾化量的离散程度最小,抗干扰能力最好。其次通过试验对上述试验设计得到的最优参数组合进行考察,试验结果表明在该参数组合条件下,雾化量满足目标要求。最后使用上述最优参数组合作为雾化控制系统的设计参数,设计制作了一套雾化控制系统。该系统包括有硬件设计和软件设计两部分,硬件设计又可分为雾化装置设计和控制电路设计两部分,软件设计采用了C语言编写控制程序,从而实现了对雾化系统的控制。通过对该系统进行测试试验,结果表明该系统的雾化量达到了预定要求,所设计的雾化控制系统具有较好的准确性和稳定性。
[Abstract]:Aiming at the dose-control function of liquid atomization in medical industry, the purpose of this paper is to study and design a set of atomization control system with fast response, stable atomization and good control precision by using DOEtechnology.Based on the Minitab software platform, the experimental data collected are analyzed, the mathematical model is established to optimize the parameters, the optimal solution of the system design parameters is found, and the accuracy, stability and reliability of the atomization control system are improved.The control of the atomization dose of the liquid was realized.The main work of this paper is as follows: firstly, according to the characteristics of atomization control system, the test platform is built and the Lab VIEW control program is written.The significance of the factors affecting the atomization control system was analyzed by using the full factor test, and the significant factors and the non-significant factors were distinguished.On the basis of this, the mathematical model of atomization quantity and atomization uniformity is established by analyzing the test data, and the optimum parameter combination of the test factor is obtained by optimizing the test factor.The dispersion of atomization amount is the smallest and the anti-interference ability is the best in the target range.The experimental results show that the atomization quantity can meet the requirements of the target under the condition of the above experimental design.Finally, the above optimal parameter combination is used as the design parameter of the atomization control system, and a set of atomization control system is designed and manufactured.The system includes two parts: hardware design and software design. The hardware design can be divided into two parts: atomization device design and control circuit design.The test results show that the atomization quantity of the system is up to the predetermined requirement and the designed atomization control system has good accuracy and stability.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TH77;TP273

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