METHOD FOR PRESSURE MEASUREMENT WITH A CORIOLIS FLOW METER AND CORIOLIS FLOW METER

摘要

described and shown is a process (1) for pressure measurement in a coriolis massedurchflussmessgeru00e4t (2), where the coriolis massedurchflussmessgeru00e4t (2) at least one messrohr (3)at least one schwingungserzeuger (4), at least two transducers (5), at least one temperature sensor (6), (7), at least one spannungssensorat least one display unit (8) and at least one control and evaluation unit (9) which, with the messrohr (3) of a medium flow.with the temperature sensor (6) is arranged such that the temperature of the messrohrs (3) measures and temperaturmesswert t to the control and evaluation unit (9) transmits.with the spannungssensor (7) in such a way and is arrangedthe spannungssensor the mechanical tension of the messrohrs (3) in an axial direction and / or in circumferential and axial spannungsmesswert sa measures and / or a spannungsmesswert sh der circumferential to the control and evaluation unit (9) transmits and with the pressure (13) of the medium based on the temperaturmesswert t and at least one spannungsmesswert sa and / or sh is determined.the task of a procedure to indicate the pressure within the messrohrs very easy can be determined is solvedthe determination of the druckwertes (13) within the messrohrs (3) on the basis of a pressure p0 from an algorithm iswith p0 in referenzbedingungen organization and continue the algorithm the difference between the temperaturmesswert t and a referenzmesswert t0 and between at least one spannungsmesswert sa and / or sh and referenzmesswerten sa0 and / or sh0 accountwith the referenzmesswerte t0 and / or sa0 and / or sh0 under referenzbedingungen were measured by means of the algorithm and that of certain druckwert (3) on the display unit (8) is spent.