Measuring and testing – Volume or rate of flow – Mass flow by imparting angular or transverse momentum to the...
Reexamination Certificate
2006-09-27
2008-08-05
Patel, Harshad (Department: 2855)
Measuring and testing
Volume or rate of flow
Mass flow by imparting angular or transverse momentum to the...
Reexamination Certificate
active
07406878
ABSTRACT:
For measuring a medium, the medium flows through at least one inline measuring device measuring tube joined into the course of a pipeline, especially a measuring tube which vibrates, at least at times. Using an inline measuring device sensor arrangement arranged on the measuring tube and/or in its vicinity and reacting, at least mediately, to changes of the at least one physical parameter of the medium, at least one measurement signal is produced, which is influenced by at least one physical parameter of the medium in the measuring tube. Additionally, pressures effective in the medium are registered, in order to determine repeatedly a pressure difference existing in the flowing medium at least in part along the at least one measuring tube. Taking into consideration a pressure difference currently determined for the flowing medium, as well as applying a transfer function, measured values of a first kind are produced, which represent, following in time one after the other, the at least one flow parameter to be measured for the medium. The transfer function determines, in such case, at least how the measured values of the first kind are generated under application of the pressure difference currently determined for the flowing medium. Taking into consideration the at least one measurement signal produced by means of the sensor arrangement of the inline measuring device, the transfer function is repeatedly adapted to the medium to be measured. The method serves especially for the measuring of media, which are, at least at times, present as two, or more, phases, of which at least one is a fluid phase.
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Drahm Wolfgang
Rieder Alfred
Bacon & Thomas PLLC
Endress & Hauser Flowtec AG
Patel Harshad
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