METHOD OF CORRECTION OF FLOW RATE AND SYSTEM FOR ITS IMPLEMENTATION Russian patent published in 1998 - IPC

Abstract RU 2110772 C1

FIELD: measurement technology, measurement of flow rate by method of variable pressure differential. SUBSTANCE: flow rate of measured flow is changed with the aid of adjustment equipment included in system for correction of flow rate from maximum permissible to minimum permissible value and back. Pressure across inlet to narrowing device and pressure differential as well as temperature and composition of flow are measured at moment of transition by values of flow rate of upper measurement limits of row of n differential manometers with upper measurement limits decreasing sequentially. Multiplicative and additive corrections, Reynolds number within measurement limits of flow rate under operational conditions and flow coefficient under operational conditions by which calculator corrects value of measured flow rate are computed. EFFECT: enhanced authenticity of method. 4 cl, 1 dwg

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RU 2 110 772 C1

Authors

Patrikeev V.G.

Frenklakh M.M.

Dates

1998-05-10Published

1995-03-30Filed