【摘要】 目的从微欧计的结构和工作原理出发,采用先进的TRIZ创新方法理论,对现有的微欧计进行创新设计,达到提高精度和自动化程度、降低控制系统的复杂性的目的。方法采用TRIZ工具的技术矛盾工具,通过查找矛盾矩阵表和应用发明原理解决测量控制方案复杂的技术矛盾。采用物场分析的工具,建立物场模型,找到对应的标准解法,得出自动化程度不高的解决方案。结果通过TRIZ理论的技术矛盾和物场分析理论,实现了微欧计自动量程切换且保证相对误差在±0.1%读数±5个字的标准。结论利用TRIZ理论的矛盾分析理论和物场分析理论能找到产品创新设计方案,使微欧计精度更高,控制系统更简单,制作成本更低,自动化程度更高。更多还原

【Abstract】 Starting from the structure and working principle of micro ohmmeter, advanced methods of TRIZ innovation theory are used to make innovation design for the existing micro ohm meter, to improve the precision and degree of automation and reduce the complexity of control system. TRIZ tools of the technical contradiction tool are used through the search for the contradiction matrix table and the application of the principle of invention to solve the measurement and control solutions of complex technical contradictions. By means of the analysis of the material field, the model of the object field model is established, the corresponding standard solution is found, and the solution of the low degree of automation is obtained. By using theory of technical contradiction and material field model analysis, micro ohm meter further automatic range switching is realized to meet the standard of relative error between±0.1% and±5 numbers. Using theory of technical contradiction and material field model analysis can find product innovation design, further improve accuracy, simply control system, lower product cost and increase automation.更多还原