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US 9,316,605 B2Granted
Determination of attributes of liquid substances
AssigneeDeLaval Holding AB
InventorsUzi Birk, David Livshits, Rotem Rabinovich
Life of this patent
Estimating the term…
Abstract
A monitoring unit (100) that determines parameters (p1, p2) of an attribute (P) of a liquid substance flowing (F) through a dielectric conduit (110) includes plural coil members (121, 122) encircling the dielectric conduit (110) that subjects a flow of the liquid substance to plural different electromagnetic fields (B(f)), and under influence thereof measuring circuitry registers corresponding impedance measures (z(f)) of the liquid substance. A processor (130) derives the parameters (p1, p2) of the attribute (P) based on the registered impedance measures (z(f)).
Claims19
A monitoring unit (100) for determining an attribute (P) of a liquid substance, comprising:
- a dielectric conduit (110);
- a processor (130) configured to determine said attribute (P), said attribute (P) containing a first number of different parameters (p1, p2, p3), the first number being larger than or equal to two;
- a measurement element (120) comprising a second number of measuring circuits, the second number being larger than or equal to the first number,
- each measuring circuit comprising a coil member (121, 122, 123) encircling the dielectric conduit (110) and connected to the processor (130),
- each coil member (121, 122, 123) being configured to produce a respective electromagnetic field (B(f1), B(f2), B(f3)) at a spectral range (f1, f2, f3) different from the other coil members (121, 122, 123),
- each of the coil members (121, 122, 123) subjecting the liquid substance, flowing through the dielectric conduit (110), to a respective one of the electromagnetic fields (B(f1), B(f2), B(f3)) of the respective different spectral range (f1, f2, f3),
- when under influence of the electromagnetic fields (B(f1), B(f2), B(f3)), each of the coil members (121, 122, 123) producing a respective impedance measure (z(f1), z(f2), z(f3)) of the liquid substance, flowing through said dielectric conduit, (110) in response the electromagnetic field (B(f)) applied to the liquid substance via each said coil member (121, 122, 123),
- wherein the processor registers each impedance measure (z(f1), z(f2), z(f3)) and derives each of the first number of parameters (p1, p2, p3) based on the registered impedance measures (z(f1), z(f2), z(f3)), each of the parameters (p1, p2, p3) being derived from a plurality of the registered impedance measures (z(f1), z(f2), z(f3)).
5 more elements
A method for determining an attribute (P) of a liquid substance, said attribute (P) containing a first number of different parameters (p1, p2, p3), the first number being larger than or equal to two, the method comprising:
- subjecting a flow (F) of the liquid substance, being transported through a dielectric conduit (110), to a second number of electromagnetic fields (B(f1), B(f2), B(f3)), the second number being larger than or equal to the first number, each of the electromagnetic fields (B(f1), B(f2), B(f3)) having a different spectral range (f1, f2, f3);
- registering, in response the applied electromagnetic fields (B(f1), B(f2), B(f3)), corresponding impedance measures (z(f1), z(f2), z(f3)) of the liquid substance flowing through the dielectric conduit (110);
- and
- deriving said attribute (P) based on the registered impedance measures (z(f1), z(f2), z(f3)),
- wherein said subjecting step uses a measurement element (120) comprising the second number of measuring circuits,
- each measuring circuit comprising a coil member (121, 122, 123) encircling the dielectric conduit (110) and connected to output to a processor (130),
- each coil member (121, 122, 123) being configured to produce a respective one of the electromagnetic fields (B(f1), B(f2), B(f3)) at the respective spectral range (f1, f2, f3) different from the other coil members (121, 122, 123),
- each of the coil members (121, 122, 123) subjecting the liquid substance, flowing through the dielectric conduit (110), to a respective one of the electromagnetic fields (B(f1), B(f2), B(f3)) of the respective different spectral range (f1, f2, f3),
- when under influence of the electromagnetic fields (B(f1), B(f2), B(f3)), each of the coil members (121, 122, 123) producing a respective one of the impedance measures (z(f1), z(f2), z(f3)) of the liquid substance flowing through said dielectric conduit (110) in response the electromagnetic field (B(f)) applied to the liquid substance via each said coil member (121, 122, 123), and
- wherein in said registering step the processor registers each impedance measure (z(f1), z(f2), z(f3)) and derives each of the first number of parameters (p1, p2, p3) based on the registered impedance measures (z(f1), z(f2), z(f3)), each of the parameters (p1, p2, p3) being derived from a plurality of the registered impedance measures (z(f1), z(f2), z(f3)).
7 more elements
A non-transitory computer readable medium storing thereon a computer program loadable into memory (M) of a computer, the computer program comprising software for controlling the computer to perform a method for determining an attribute (P) of a liquid substance, said attribute (P) containing a first number of different parameters (p1, p2, p3), the first number being larger than or equal to two, the method comprising:
- subjecting a flow (F) of the liquid substance, being transported through a dielectric conduit (110), to a second number of electromagnetic fields (B(f1), B(f2), B(f3)), the second number being larger than or equal to the first number, each of the electromagnetic fields (B(f1), B(f2), B(f3)) having a different spectral range (f1, f2, f3);
- registering, in response the applied electromagnetic fields (B(f1), B(f2), B(f3)), corresponding impedance measures (z(f1), z(f2), z(f3)) of the liquid substance when flowing through the dielectric conduit (110);
- and
- deriving said attribute (P) based on the registered impedance measures (z(f)),
- wherein said subjecting step uses a measurement element (120) comprising the second number of measuring circuits,
- each measuring circuit comprising a coil member (121, 122, 123) encircling the dielectric conduit (110) and connected to output to a processor (130),
- each coil member (121, 122, 123) being configured to produce a respective one of the electromagnetic fields (B(f1), B(f2), B(f3)) at the respective spectral range (f1, f2, f3) different from the other coil members (121, 122, 123),
- each of the coil members (121, 122, 123) subjecting the liquid substance, flowing through the dielectric conduit (110), to a respective one of the electromagnetic fields (B(f1), B(f2), B(f3)) of the respective different spectral range (f1, f2, f3),
- when under influence of the electromagnetic fields (B(f1), B(f2), B(f3)), each of the coil members (121, 122, 123) producing a respective one of the impedance measures (z(f1), z(f2), z(f3)) of the liquid substance flowing through said dielectric conduit (110) in response the electromagnetic field (B(f)) applied to the liquid substance via each said coil member (121, 122, 123), and
- wherein in said registering step the processor registers each impedance measure (z(f1), z(f2), z(f3)) and derives each of the first number of parameters (p1, p2, p3) based on the registered impedance measures (z(f1), z(f2), z(f3)), each of the parameters (p1, p2, p3) being derived from a plurality of the registered impedance measures (z(f1), z(f2), z(f3)).
7 more elements
Dependencies are inferred from the claim text.