| 摘要 |
The Coriolis mass-flow/density meter includes at least one measuring tube (11), which is traversed in operation by the medium. A support means (12) of the Coriolis massflow/ density meter is fixed at an inlet end and at an outlet end of the measuring tube 11 and thus clamps the measuring tube such that it can oscillate. In operation, the measuring tube (11) is caused by means of an exciter arrangement (13) to oscillate with mechanical oscillations, especially bending oscillations. Furthermore, the Coriolis massflow/ density meter includes means (141, 142) for producing measurement signals (X s1, X s2) representing inlet-end and outlet-end oscillations of the measuring tube (11). An evaluation electronics (2) produces an intermediate value (X'm) derived from the measurement signals (X s1, X s2) and representing an uncorrected mass flow rate. The evaluation electronics also produces a correction value (X K) for the intermediate value (X'm). The correction value (X K) is derived from the measurement signals (X s1, X s2), especially from a second measured value (X p) representing a density of the medium and especially likewise produced in the evaluation electronics (2). Moreover, the evaluation electronics (2) produces a measured value (X m,) representing a mass flow rate on the basis of the intermediate value (X'm) and the correction value (X K).
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