发明名称 |
Method and device for determining the filling level of a medium in a container |
摘要 |
The invention relates to a method for determining the filling level of a medium in a container. A mixer that has at least one mixer blade and a mixer frequency (f<1>R</1>) is disposed in the container. Measuring signals are emitted at a predetermined measuring frequency (f<1>M</1>) towards the medium. The measuring signals reflected on the surface of the medium are received and evaluated by a runtime method. The aim of the invention is to provide a device which allows for a reliable measurement of the filling level of a medium in a container provided with a mixer. To this end, the measuring frequency (f<1>M</1>) of the measuring signal having the mixer frequency (f<1>R</1>) of the mixer is synchronized (f<1>M</1>=n f<1>R</1>with n epsilon N) and that the measuring frequency (f<1>M</1>) is shifted by a defined phase (?) with respect to the mixer frequency (f<1>R</1>).
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申请公布号 |
US6877372(B2) |
申请公布日期 |
2005.04.12 |
申请号 |
US20030275968 |
申请日期 |
2003.05.12 |
申请人 |
ENDRESS + HAUSER GMBH+CO. KG |
发明人 |
SPANKE DIETMAR;LALLA ROBERT |
分类号 |
G01F23/284;G01F23/296;(IPC1-7):G01F23/00 |
主分类号 |
G01F23/284 |
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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