微型传感装置实现液压系统流量测量的理论及传感器研究

Flow measurement takes very important place at the metering and monitoring system. However, people are trying to find a more convenient,shortcut, economical measurement method because of its difficulty. In this paper, it is studied theoretically and experimentally in detail for the non-inserting flow measurement and put forward the method of pressure-flow measurement applying strain piece system. The following are 国家自然科学基金资助项目结题报告4involved: Generalize the emergence, importance, goal and meaning of the project; review the history, state of art and development in the field of non-invasive flow measurement and fault diagnosis for hydraulic ystem.Summarize systematically the pipeline dynamic modeling theory and its development in recent years, which are the basis of research on flow measurement non-invasively for pipeline. Put forward a new method of the flow measurement non-invasively for pipeline and describe the operating principle and experiment scheme of the new method.Describe the principle of the strain measurement in the dynamic and static states; demonstrate the feasibility of shape change measurement applying for strain measurement and describe its limitation. Describe the experiment equipment applying in the research, including the rig, data collection system and provide the experiment repetition. Deduce the flow maths expression basing dynamic modeling, then design the program in the Matlab by the expression and woke out the flow value. Also compare it with the value of the standard flowmeter in the rig and prove the validity of this method..

研究微型传感装置在液压系统流量测量中应用的理论与传感器，是针对液压系统中液体流动时的速度场，进行理论分析与实验研究，提出应用微型传感装置制做新原理传感器，并对液体进行高精度流量测量的机理、微型传感装置在被测液休整分布关系及相对位置优化问题醒芯浚峁┛晒┮貉瓜低澄奕哦呖煽啃缘牧髁吭谙呒觳庑略泶衅鞯难?...