发明名称 |
СПОСОБ ИЗМЕРЕНИЯ РАСХОДА ЖИДКОСТИ |
摘要 |
FIELD: physics, instrumentation technology. ^ SUBSTANCE: method includes polarization of liquid running in a pipeline by strong electromagnetic field, and liquid detection in two successive pipeline sections by measurement of its nuclear magnetization. A signal of nuclear magnetic resonance (NMR) is recorded in one of the sections. Duration of time interval t0 from the detection moment is determined based on the condition of equal amplitudes of NMR signal after detection in the first and the second pipeline sections. Liquid flowrate in pipeline is determined by formula where V - is volume of pipeline section in which the NMR signal is recorded. The invention improves flow metering accuracy at changing flow conditions and liquid relaxation time. ^ EFFECT: increased accuracy of liquid flow metering. ^ 1 dwg |
申请公布号 |
RU2006123617(A) |
申请公布日期 |
2008.01.10 |
申请号 |
RU20060123617 |
申请日期 |
2006.07.03 |
申请人 |
Государственное образовательное учреждение высшего профессионального образовани "Санкт-Петербургский государственный технологический институт (технический университет)" (RU) |
发明人 |
Жерновой Александр Иванович (RU) |
分类号 |
G01F1/716 |
主分类号 |
G01F1/716 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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