Mass flow is determined by measuring the
time difference exhibited by the velocity detector signals.
During zero flow conditions, no tube twist occurs, resulting in
no time difference between the two velocity signals. With
flow, a twist occurs with a resulting time difference between
the two velocity signals and the time difference is directly
proportional to mass flow.
In this paper, fuzzy system is used for error correction in
Coriolis mass flow meter. Definite available flow meter
parameters such as dampening, temperature, Density and
pressure are given to fuzzy system as inputs; a correction to
flow measurement is estimated as output. Fuzzy systems,
based on if-then rules, can easily convert linguistic variables
and expressions to mathematical formulas. The ability of
these systems in modelling and approximating different
phenomenon makes it suitable for error modelling in Coriolis
mass flow meter. A fuzzy designer tool which is the most
applicable fuzzy system developed by Rockwell software was