17-11-2016 дата публикации
Номер: US20160334257A1
Принадлежит:
Described and shown is a method for operating a flowmeter () having a measuring tube (), wherein the flow (d) of a medium () through the measuring tube () is measured. A continuous dwell time of the measured flow (d) greater than or equal to a flow threshold (d) is assigned to a flow interval (Δt, Δt) and a flow volume (V, V) is determined from the measured flow (d) in the flow interval (Δt, Δt). In each case, a continuous dwell time of the measured flow (d) less than the flow threshold (d) is assigned to a zero flow interval (Δt). In each case, a deviation volume of the flow volume (V, V) in one of the flow intervals (Δt, Δt) 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 (Δt, Δt) is less than the threshold deviation volume, a zero flow through the measuring tube () is determined and compensated using the measured flow (d) in the zero flow interval (Δt) directly preceding the flow interval (Δt, Δt). 1. A method for operating a flowmeter having a measuring tube , wherein the flow (d) of a medium through the measuring tube is measured , [{'sub': s', 'D,1', 'D,2', '1', '2', 'D,1', 'D,2, 'in each case, a continuous dwell time of the measured flow (d) greater than or equal to a flow threshold (d) is assigned to a flow interval (Δt, Δt) and a flow volume (V, V) is determined from the measured flow (d) in the flow interval (Δt, Δt),'}, {'sub': s', 'N,1, 'in each case, a continuous dwell time of the measured flow (d) less than the flow threshold (d) is assigned to a zero flow interval (Δt),'}, {'sub': 1', '2', 'D,1', 'D,2, 'in each case, a deviation volume of the flow volume (V, V) in one of the flow intervals (Δt, Δt) from a reference flow volume is determined and the deviation volume is compared to a threshold deviation volume, and'}, {'sub': D,1', 'D,2', 'N,1', 'D,1', 'D,2, 'if the deviation volume in one of the flow intervals (Δt, Δt) is less than the ...
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