发明名称 |
TRANSIENT BUBBLE REMEDIATION IN CORIOLIS FLOWMETERS |
摘要 |
A Coriolis flowmeter (5) is operable as a vibrating tube densitometer where a flow tube (103A-103B) is driven to vibrate at a fundamental frequency from which density of the material flowing through the flow tube (103A-103B) may be calculated. The drive gain is monitored as an indicator of multiphase flow including gas and liquid components where a substantial increase in drive ga in indicates gas damping of the flowtube vibrations due to a transient bubble entering the flowtube. The gas damping effects of the transient bubble and t he correspondingly reduced density readings are remediated by the use of historical density measurements corresponding to periods of flow when no transient bubble has entered the flowtube.
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申请公布号 |
CA2344830(A1) |
申请公布日期 |
2000.04.06 |
申请号 |
CA19992344830 |
申请日期 |
1999.09.09 |
申请人 |
MICRO MOTION, INC. |
发明人 |
DUTTON, ROBERT E. |
分类号 |
G01F1/74;G01F1/84;G01N9/00;G01N9/32;(IPC1-7):G01F1/84 |
主分类号 |
G01F1/74 |
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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