动量定律实验仪器的改进分析与评价  

Analysis and assessment of the devices for momentum law testing

作　　者：刘银庆[1] 马一玫[1] 

机构地区：[1]大庆石油学院石油工程学院,黑龙江大庆163318

出　　处：《大庆石油学院学报》2005年第3期16-18,120,共4页Journal of Daqing Petroleum Institute

摘　　要：针对传统仪器用加重物法造成的动态波动和人工配重的低精度问题,采用自动反馈原理和动摩擦减阻技术,改进了动量定律实验仪器;并通过定性分析管嘴出流动量修正因数测量值的准确性以及管嘴出流的动量修正因数理论值的演拟,验证了仪器改进的合理性和测量的精确性,且实验精度高达±0.01.In view of the imprecision caused by adding weight to the traditional apparatus of momentum law, the apparatus are improved by adopting the theory of automatic feedback and the technology of decreasing obstruction by moving attrition. The apparatus are properly improved, the mensuration is accurate, the mensuration of numerical value of momentum correct coefficient of flow nozzle experiment is perfect and is verified by analyzing the performance of the improved apparatus ,the precision of experiment amounts to±0.01.

关 键 词：动量方程 仪器改进 管嘴出流 动量修正因数 

分 类 号：TE827[石油与天然气工程—油气储运工程]