发明名称 METHOD FOR DETERMINING THE ACCURACY OF A GAS MEASUREMENT INSTRUMENT
摘要 A meter in a high pressure gas pipeline is calibrating using a sonic nozzle in series with the meter. A bypass line is run where measurements are made to determine gas composition dependent factors for use in defining the flow through the nozzle.
申请公布号 DE3664236(D1) 申请公布日期 1989.08.10
申请号 DE19863664236 申请日期 1986.01.16
申请人 AMERICAN METER COMPANY 发明人 HICKS, IRWIN A.;JACOBSEN, ROBERT S.;KEE, DAVID F.;SCHNEIDER, GEORGE W., JR.
分类号 G01F25/00;(IPC1-7):G01F25/00 主分类号 G01F25/00
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