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超声波流量测量中流速计算方法的对比

于洋 宗光华 丁凤林

于洋, 宗光华, 丁凤林等 . 超声波流量测量中流速计算方法的对比[J]. 北京航空航天大学学报, 2013, (1): 37-41.
引用本文: 于洋, 宗光华, 丁凤林等 . 超声波流量测量中流速计算方法的对比[J]. 北京航空航天大学学报, 2013, (1): 37-41.
Yu Yang, Zong Guanghua, Ding Fenglinet al. Comparison of flow rate calculation method for ultrasonic flow measurement[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (1): 37-41. (in Chinese)
Citation: Yu Yang, Zong Guanghua, Ding Fenglinet al. Comparison of flow rate calculation method for ultrasonic flow measurement[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (1): 37-41. (in Chinese)

超声波流量测量中流速计算方法的对比

详细信息
  • 中图分类号: TH 814

Comparison of flow rate calculation method for ultrasonic flow measurement

  • 摘要: 超声波流量计(UFM,Ultrasonic Flow Meter)通过测量管路中顺流和逆流方向的超声波传播时间变化计算流速,因此超声波传播时间的准确测量对流量计的精度影响至关重要.对超声波流量计的测量方法进行研究,从环境温度的变化、时间测量的准确性、不确定度的计算3个方面,对比超声波传播时间差法和频率差法对流量测量精度的影响.通过超声波流量测量实验,验证了在流量计未校准的情况下,与频率差法相比,时间差法的测量精度更高,且其校准系数曲线的线性度更好,校准后可在全流量范围内获得更高的测量精度.

     

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  • 被引次数: 0
出版历程
  • 收稿日期:  2011-10-21
  • 网络出版日期:  2013-01-31

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