发明名称 |
Doppler flowmeter for multiphase flows |
摘要 |
There is provided an apparatus for measuring flow rates of multi-phase flows in metal pipes, the apparatus comprising a transceiver generating a pulsed Doppler signal in the range 100 KHz to 10 microHz and an impedance device adapted to be coupled to a pipe so as to reduce or prevent reflections occurring from a pipe wall in response to the pulsed signal. The apparatus includes signal processor for analysing reflected signals received by the transceiver and for calculating the energy contained in a received signal. The pulsed signal is a shear wave which assists analysis of the reflected signals. The impedance device comprises a sound absorbing block made from plastics material with tungsten particles embedded therein. Different embodiments using various arrangements of transceivers are described, and also a related method of using the apparatus.
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申请公布号 |
US6758100(B2) |
申请公布日期 |
2004.07.06 |
申请号 |
US20010873572 |
申请日期 |
2001.06.04 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
HUANG SONGMING |
分类号 |
G01F1/66;G01F1/74;(IPC1-7):G01F1/66 |
主分类号 |
G01F1/66 |
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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