CAD/CAE技术在化学发光成像仪设计中的应用研究

摘要

Objective: To develop a multipurpose imaging instrument which can detect chemiluminescent signal of biochips, Immununofiltration assay and Immunochromatographic assay. Methods:With CAD/CAE technology, some key parts undertaking loads were modeled and analized, including strength analysis and thermal-stress coupled analysis. This ensure to get optimization result. Results:Through simulation analysis, the design level was improved, development costs and development cycle were reduced. Conclusion:Optimization of products with CAD/CAE is an effective design method, which is an important guarantee for the design from the experience analogy method to the scientific analysis method. The product’s performance and design efficiency can be improved.%目的：研制一种用于生物芯片、免疫渗滤(IFA)及免疫层析(ICA)等化学发光信号检测的多用途成像仪器。方法：借助计算机辅助设计与辅助工程(CAD/CAE)技术，针对设计的多用途成像仪关键部件进行建模和仿真，对整体调焦定位架构进行分析，得到其承载静强度分布情况；以电荷耦合器件(CCD)摄像头作为热源，对其散热结构进行热-固耦合分析，得到热应力情况，在保证性能的前提下进一步优化结构。结果：通过对整体调焦定位架构和热-固耦合的仿真分析，为改进设计提供理论依据。同时，可减少开发费用及缩短开发周期。结论：CAD/CAE技术是进行产品结构优化设计的有效方法，是设计工作由经验类比方法向科学分析方法转变的重要保证，对于设计工作中提升产品性能、提高设计效率可起到积极的推动作用。