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Robert Schäfer, M. Jungmann, Roland Werthschützky

Self Diagnosis in Flow Measurement by Combining Venturi- and Vortex-Principle

The implementation of self diagnosis for sensor systems is a recent development which is aimed to increase reliability and accuracy of measuring systems. In this article a concept of a liquid flow meter is proposed which combines a differential pressure meter of the venturi type with a vortex meter. The performance of a prototype is characterized experimentally. A possible structure of a problem specific signal analysis is outlined. It perceives and evaluates changes in the measuring system, both short and long term.

tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Print ISSN: 0171-8096
Volume: 67, 09/2000
Pages: 361

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