Method for operating a process-measuring device

Details Method for operating a process-measuring device Method for operating a process-measuring device

2008-07-22

2008-07-22

Barlow, Jr., John E (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Mechanical measurement system

C702S047000, C702S050000, C702S052000, C073S861120, C073S861160, C073S861170

Reexamination Certificate

active

07403862

ABSTRACT:
The process measuring device comprises a flow sensor having a measuring tube, a sensor arrangement for producing a measurement signal, and an evaluation and operating circuit. The method serves to compensate for the effects of interfering potentials which are caused especially by foreign particles or air bubbles in the liquid to be measured. For this purpose, an anomaly in the waveform of the measurement signal caused at least in part by an electrical, especially pulse-shaped, interfering potential is detected by determining within a stored first data set a data group which digitally represents the anomaly. To generate an interference-free data set, the data belonging to the data group are removed from the stored first data set.

REFERENCES:
patent: 5621177 (1997-04-01), Torimaru

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