【摘要】 在用DXS－302流量积算器测量饱和水蒸汽的质量流量时，由于饱和水蒸汽的密度与压力不成线性关系，因此采用了法定计量单位条件下的经验公式进行计算。该公式结构简单，便于记忆，准确度较高．当绝对压力在0．2～2．1MPa时，计算出的饱和水蒸汽密度与查表比较，其误差小于±0．5％。用上述经验公式进行了调试数据的实例计算，当压力波动范围为0．4～0．8MPa时，补偿后的流量误差仅为7％，完全满足工业计量的需求。更多还原

【Abstract】 In measuring mass flow of saturated steam by using DXS-302 flow integrating meters, because the relationship between the density of saturated steam with its pressure isn’t linear,experiential formulas calculation of legal measurement unit has been adopted. The formulas are simple in construction, easy to memory and high in accuracy. When absolute pressure at 0.22. 1MPa, the calculation results compared with one by look up tabular its error is less than ±0.5%更多还原