Device and method for system and process supervision in a...

Details Device and method for system and process supervision in a... Device and method for system and process supervision in a...

2005-08-30

2005-08-30

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Mechanical measurement system

C073S861120

Reexamination Certificate

active

06937943

ABSTRACT:
The invention relates to a method and to a device for system and process supervision in a magneto-inductive sensor. A medium flows through a measuring tube substantially in the direction of the axis of the measuring tube. A magnetic field extends through the measuring tube in a direction substantially perpendicular to the axis of the measuring tube. A measuring voltage is induced in at least one measuring electrode that is disposed substantially perpendicular to the axis of the measuring tube. The measuring voltage or the measurement data provide information on the volume flow of the measuring medium in the measuring tube. In addition to the determination of the volume flow, the detection of the modification of a system and/or process parameter is also desired. For this purpose, the measurement data are acquired digitized and stored as actual measurement data over a predetermined period and the actual measurement data are compared with predetermined desired measurement data. If there is a deviation between the actual measurement data and the desired measurement data, a message is output.

REFERENCES:
patent: 4420240 (1983-12-01), Katsuma et al.
patent: 4462060 (1984-07-01), Schmoock
patent: 4856345 (1989-08-01), Mochizuki
patent: 5090250 (1992-02-01), Wada
patent: 5443552 (1995-08-01), Tomita
patent: 5905206 (1999-05-01), Herwig et al.
patent: 2 348 011 (2000-09-01), None
patent: 2 348 964 (2000-10-01), None

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