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YLJZ型液体质量流量计量装置直接用于散装油脂行业的贸易结算，它的准确与否直接关系到买卖双方的经济利益。它实现了温度跟踪、密度补偿，从而完成了对液体的质量计量，既采用补偿式质量流量测量方法，同时测量液体的温度和压力，然后利用液体密度ρ与温度t，压力P的关系求出
YLJZ liquid mass flow metering device directly used in bulk oil trade trade settlement, its accuracy is directly related to the economic interests of both buyers and sellers. It realizes the temperature tracking and density compensation, thus accomplishes the quality measurement of the liquid. It not only adopts the compensated mass flow measurement method but also measures the temperature and pressure of the liquid, and then obtains the relationship between the liquid density ρ and the temperature t and the pressure P