Title:
DEVICE FOR MONITORING A PREDETERMINED FILLING LEVEL OF A MEASURING MEDIUM IN A CONTAINER
Document Type and Number:
WIPO Patent Application WO2004018974
Kind Code:
A3
Abstract:
The invention relates to a vibration detector for determining and/or monitoring a predefined filling level in a container. Said vibration detector comprises an oscillating unit (2), a drive/receiver unit (6), and an evaluation unit (8). The inventive vibration detector can also be used as a viscosity sensor or density sensor. In order to create a multivariable sensor, the oscillating circuit (7) that is formed by the oscillating unit (2) and an electronic feedback device (9) is provided with a microprocessor which corrects the phase of the electronic feedback device (9) across a given frequency bandwidth such that the sum of the phases of the electronic feedback device (9) and the microprocessor (8) follows a predefined function f(n).
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Inventors:
MUELLER ALEXANDER (DE)
D ANGELICO SASCHA (DE)
D ANGELICO SASCHA (DE)
Application Number:
PCT/EP2003/007841
Publication Date:
April 29, 2004
Filing Date:
July 18, 2003
Export Citation:
Assignee:
ENDRESS & HAUSER GMBH & CO KG (DE)
MUELLER ALEXANDER (DE)
D ANGELICO SASCHA (DE)
MUELLER ALEXANDER (DE)
D ANGELICO SASCHA (DE)
International Classes:
G01F23/296; G01N9/00; G01N11/16; G01F1/00; (IPC1-7): G01F23/296; G01N9/00; G01N11/16
Foreign References:
| DE10161071A1 | 2003-06-18 | |||
| DE10161072A1 | 2003-06-18 | |||
| DE10063718A1 | 2002-06-27 | |||
| DE10057974A1 | 2002-05-23 | |||
| US5895848A | 1999-04-20 | |||
| EP0568521A1 | 1993-11-03 |
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