发明名称 |
Vane for use in monitoring flow of a fluid |
摘要 |
A flowmeter has a vane which is caused to vibrate at one of its resonant frequencies and a flexure standing wave set up along it. Two piezoelectric sensors are used to monitor characteristics of the standing wave and hence the mass flow rate of a fluid flowing past the vane along a pipe. The vane comprises a ceramic planar member on which a conductive ceramic ink is laid down to form tracks. The ink also bonds a ceramic piezoelectric transducer to the member to drive and maintain it in vibration. A non-conductive layer is laid down on the surface of the member covering the conductive tracks surrounding the transducer. A metal layer forms the external surface of the vane and acts as a ground plane for the transducer.
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申请公布号 |
US4596153(A) |
申请公布日期 |
1986.06.24 |
申请号 |
US19830562750 |
申请日期 |
1983.12.19 |
申请人 |
THE MARCONI COMPANY LIMITED |
发明人 |
MACDONALD, GEORGE A.;JARVIS, CHARLES R.;LANGDON, ROGER M. |
分类号 |
G01F1/66;G01F1/78;(IPC1-7):G01F1/20 |
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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