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对于饱和蒸汽来讲,由于其密度可以表示为压力P的单值函数,即ρ=f(p),所以只需将被测管道的工作压力信号与节流装置前后的差压信号送入自动补偿装置进行一定关系的运算(见图1),就可得到较精确的流量值。
For saturated steam, because its density can be expressed as a single-valued function of pressure P, that is, ρ = f (p), so only the measured pressure signal pipeline and the throttle device before and after the differential pressure signal into the automatic Compensation device for a certain relationship between the operation (see Figure 1), you can get a more accurate flow value.