Measurement and monitoring system of daily stock and plant

摘要

A measurement sensor where a mixed solution enters a manifold ( 1 ) and is separated in an entry chamber ( 2 ) by a whirlpool and/or setting effect. An accumulation chamber ( 3 ) and outflow ( 4 ) positioned in the lower peripheral of the entry chamber ( 2 ) causes the separated solution to preferentially flow to a sensing tube ( 6 ) with surface to sectional area dimensions optimised for high frequency electric field measurement of solution parameters used to determine capacitance and conductivity. Overflow of mixed solution enters ( 5 ) similar sensing tubes ( 7 ), for mixed flow measurements used to determine mass and flow rate. The number and size of the overflow tubes ( 7 ) give minimal head loss through the manifold. Solution is recombined in an exit chamber ( 10 ) that causes fluid dynamic restrictions ( 8 ) to extend solution residence time in measurement tube ( 6 ) before exiting the manifold ( 11 ). Also disclosed is measurement of a fluid parameter by improving the measurement sensitivity by at least partially canceling the effect of dielectric properties of the containment wall through which the parameter is sensed, and a method for determining plant performance using stored performance profiles.