Invention Grant
- Patent Title: Method for operating a flowmeter and respective flowmeter
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Application No.: US15150854Application Date: 2016-05-10
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Publication No.: US10215607B2Publication Date: 2019-02-26
- Inventor: Helmut Brockhaus , Markus Dabrowski , Wilhelm Florin
- Applicant: KROHNE Messtechnik GmbH
- Applicant Address: DE Duisburg
- Assignee: KROHNE Messtechnik GmbH
- Current Assignee: KROHNE Messtechnik GmbH
- Current Assignee Address: DE Duisburg
- Agency: Borden Ladner Gervais LLP
- Priority: DE102015107366 20150511
- Main IPC: G01F15/00
- IPC: G01F15/00 ; G01F25/00 ; G01F1/72 ; G01F15/07 ; G01F1/58 ; G01F1/00 ; G01F11/00 ; G01F13/00 ; G01F15/075 ; G01F22/00

Abstract:
Described and shown is a method for operating a flowmeter (1) having a measuring tube (2), wherein the flow (d) of a medium (4) through the measuring tube (2) is measured. A continuous dwell time of the measured flow (d) greater than or equal to a flow threshold (ds) is assigned to a flow interval (ΔtD,1, ΔtD,2) and a flow volume (V1, V2) is determined from the measured flow (d) in the flow interval (ΔtD,1, ΔtD,2). In each case, a continuous dwell time of the measured flow (d) less than the flow threshold (ds) is assigned to a zero flow interval (ΔtN,1). In each case, a deviation volume of the flow volume (V1, V2) in one of the flow intervals (ΔtD,1, ΔtD,2) from a reference flow volume is determined and the deviation volume is compared to a threshold deviation volume. If the deviation volume in one of the flow intervals (ΔtD,1, ΔtD,2) is less than the threshold deviation volume, a zero flow through the measuring tube (2) is determined and compensated using the measured flow (d) in the zero flow interval (ΔtN,1) directly preceding the flow interval (ΔtD,1, ΔtD,2).
Public/Granted literature
- US20160334257A1 METHOD FOR OPERATING A FLOWMETER AND RESPECTIVE FLOWMETER Public/Granted day:2016-11-17
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