发明名称 |
Method and apparatus for fiber optic backscattered light measurement to determine flow rates of multi-phase streams |
摘要 |
Flow rates of multi-phase streams may be determined by use of a fiber optic probe which establishes an illuminated sensing zone of finite dimensions. The probe collects light backscattered from the zone, the collected light being converted by a photodiode to voltage waveforms. Flow rate is determined by sampling voltage waveforms at discrete points in time, the sample being digitized and the digits being autocorrelated for such discrete points.
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申请公布号 |
US4978863(A) |
申请公布日期 |
1990.12.18 |
申请号 |
US19880240860 |
申请日期 |
1988.09.06 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
LYONS, JOHN W.;ROPER, III, JOHN A.;ALDRICH, PETER D. |
分类号 |
G01F1/708 |
主分类号 |
G01F1/708 |
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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