Medium flow meter
    1.
    发明授权
    Medium flow meter 有权
    中流量计

    公开(公告)号:US06370950B1

    公开(公告)日:2002-04-16

    申请号:US09272575

    申请日:1999-03-19

    IPC分类号: G01F168

    CPC分类号: G01F1/699

    摘要: The invention relates to a device for measuring the flow of a medium e.g., a gaseous medium or a fluid medium, which device is based on measuring and affecting the temperature distribution of a medium flowing along, which flow sensor comprises two object, each comprising a heating element and a temperature sensor, the measured temperature difference being kept, by way of a control loop, to the value of zero, the asymmetry of the power supply to the objects in order to comply with the aforesaid criterion, according to which the temperature difference must be zero, being representative of the value to be measured of the medium flow, taking into account parameters associated with the medium, such as its density and specific heat.

    摘要翻译: 本发明涉及一种用于测量介质流动的装置,例如气态介质或流体介质,该装置基于测量和影响流动的介质的温度分布,该流量传感器包括两个物体,每个物体包括一个 加热元件和温度传感器,通过控制回路将测量的温差保持为零值,对物体的电源的不对称性,以符合上述标准,根据该温度,温度 差异必须为零,代表介质流量的值,考虑与介质相关的参数,如其密度和比热。