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A soft sensor for flotation plants
Author(s) -
Bazin Claude,
Trusiak Andrew
Publication year - 1998
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450760121
Subject(s) - soft sensor , process (computing) , computer science , volumetric flow rate , window (computing) , flow (mathematics) , least squares function approximation , control theory (sociology) , real time computing , algorithm , mathematics , control (management) , artificial intelligence , statistics , mechanics , physics , geometry , estimator , operating system
A soft‐sensor was developed to estimate the solids flow rates in the streams of a flotation circuit. The algorithm uses metal assays and mass flow rate measurements to perform the estimation. The method performs a recursive least squares estimation of the mass flow rates based on the assumption of mass conservation over a specified time window. The soft‐sensor is programmed into a Vax computer system interfaced with a DCS and is currently used for process control and instrument tuning.

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