| 摘要 |
A process parameter (45) such as mass flow is determined in a vibrating conduit process parameter sensor (5) using a complex modal transformation estimated from a plurality of motion signals representing motion of the parameter sensor conduit. According to an aspect of the invention, a complex eigenvector is provided representing motion of the conduit at the plurality of locations at a known mass flow. A plurality of motion signals is received fr om a plurality of motion transducers, the plurality of motion signals indicatin g motion at a plurality of locations on the conduit as a material flows throug h the conduit. A complex modal transformation relating the received plurality of motion signals to the complex eigenvector is estimated. Mass flow through th e conduit is estimated from the known mass flow and the estimated complex moda l transformation. Related apparatus and computer program products are also discussed.
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