ABSTRACTTheAveragingPitotTubeflowmeteriswidelyappliedforitssimplestructure,convenientinstallation,littlepressureloss,lowcost,long—:needthecooperationofthreevalvegroup,,itchangeswiththeflowvelocity,,whichcauseanarrowflowmeasuredrangeoflowerthan0:’,,amending,displayandremotetransmission,,pressureandtemperaturesignalaredetectedbyHT20Vdifferentialpressuresensor,,’,,4~20mAcurrentoutputsintwo。,instantaneousmassflow,accumulatedmassflow,temperature,pressure,differentialpressure,density,
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