公开(公告)号：US20170089743A1

公开(公告)日：2017-03-30

申请号：US14863734

申请日：2015-09-24

Applicant: Rosemount Inc.

Inventor： Michael P. Machuca ,  Joseph A. Smith ,  Trever J. Ball ,  Scot R. Foss

IPC: G01F1/58

CPC classification number: G01F1/588 ,  G01F1/60 ,  G01F1/74 ,  G01F15/08

Abstract: A magnetic flowmeter includes at least one coil configured to generate a magnetic field within a process fluid flow. A pair of electrodes is configured to detect an electromotive force within the flowing process fluid in response to the magnetic field. Measurement circuitry is coupled to the pair of electrodes and is configured to provide an indication of the detected electromotive force. A processor is coupled to the measurement circuitry and configured to receive the indication of the detected electromotive force and determine a flow-related output based on the detected electromotive force. A diagnostics component is configured to analyze a number of successive parameters of the magnetic flowmeter in order to provide an indication of a detected entrained fluid.